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<div class="title">dtls.c</div>  </div>
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<a href="dtls_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* dtls -- a very basic DTLS implementation</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 2011--2012,2014 Olaf Bergmann &lt;bergmann@tzi.org&gt;</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright (C) 2013 Hauke Mehrtens &lt;hauke@hauke-m.de&gt;</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * Permission is hereby granted, free of charge, to any person</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * obtaining a copy of this software and associated documentation</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> * files (the &quot;Software&quot;), to deal in the Software without</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * restriction, including without limitation the rights to use, copy,</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * modify, merge, publish, distribute, sublicense, and/or sell copies</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * of the Software, and to permit persons to whom the Software is</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * furnished to do so, subject to the following conditions:</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * The above copyright notice and this permission notice shall be</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> * included in all copies or substantial portions of the Software.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND,</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> * SOFTWARE.</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="tinydtls_8h.html">tinydtls.h</a>&quot;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="dtls__config_8h.html">dtls_config.h</a>&quot;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="dtls__time_8h.html">dtls_time.h</a>&quot;</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#ifdef HAVE_ASSERT_H</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#include &lt;assert.h&gt;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#ifndef WITH_CONTIKI</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#include &lt;stdlib.h&gt;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="uthash_8h.html">uthash.h</a>&quot;</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="debug_8h.html">debug.h</a>&quot;</span></div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="numeric_8h.html">numeric.h</a>&quot;</span></div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="netq_8h.html">netq.h</a>&quot;</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="dtls_8h.html">dtls.h</a>&quot;</span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="alert_8h.html">alert.h</a>&quot;</span></div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="session_8h.html">session.h</a>&quot;</span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="prng_8h.html">prng.h</a>&quot;</span></div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="preprocessor">#ifdef WITH_SHA256</span></div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#  include &quot;sha2/sha2.h&quot;</span></div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="dtls_8c.html#aebefc949b2298e7de7b95b715874d407">   54</a></span>&#160;<span class="preprocessor">#define dtls_set_version(H,V) dtls_int_to_uint16((H)-&gt;version, (V))</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="dtls_8c.html#a8e0ab8b3ce70468c29820cafe96cd365">   55</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define dtls_set_content_type(H,V) ((H)-&gt;content_type = (V) &amp; 0xff)</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="dtls_8c.html#a9f723101896941fa44ea701c4dfd3591">   56</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define dtls_set_length(H,V)  ((H)-&gt;length = (V))</span></div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="dtls_8c.html#aa02d6b65a8864468c2b8cfbe79084467">   58</a></span>&#160;<span class="preprocessor">#define dtls_get_content_type(H) ((H)-&gt;content_type &amp; 0xff)</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="dtls_8c.html#a22d6bcdee257de4be562aee0be9c87fb">   59</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define dtls_get_version(H) dtls_uint16_to_int((H)-&gt;version)</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="dtls_8c.html#a175d8e65080497463d13caf20e961500">   60</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define dtls_get_epoch(H) dtls_uint16_to_int((H)-&gt;epoch)</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="dtls_8c.html#a41f28f63e60a1a0b45a77d62bb5380e7">   61</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define dtls_get_sequence_number(H) dtls_uint48_to_ulong((H)-&gt;sequence_number)</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="dtls_8c.html#aad633ed0a80e25b3884d119a8d8aeaff">   62</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define dtls_get_fragment_length(H) dtls_uint24_to_int((H)-&gt;fragment_length)</span></div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="preprocessor">#ifndef WITH_CONTIKI</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="dtls_8c.html#a0ce6e5416f5479558116b881d3eb1ad6">   65</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define HASH_FIND_PEER(head,sess,out)       \</span></div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="preprocessor">  HASH_FIND(hh,head,sess,sizeof(session_t),out)</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="dtls_8c.html#acf0d50c9f224c0677988f13e947e9523">   67</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define HASH_ADD_PEER(head,sess,add)        \</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="preprocessor">  HASH_ADD(hh,head,sess,sizeof(session_t),add)</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="dtls_8c.html#a0844494b0b76acb7bcf832ae74fb25c0">   69</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define HASH_DEL_PEER(head,delptr)      \</span></div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="preprocessor">  HASH_DELETE(hh,head,delptr)</span></div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="dtls_8c.html#ae97c368900c13dc7074c09e8848afa8f">   73</a></span>&#160;<span class="preprocessor">#define DTLS_RH_LENGTH sizeof(dtls_record_header_t)</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">   74</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_HS_LENGTH sizeof(dtls_handshake_header_t)</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="dtls_8c.html#affe47ee08ad0e6a54d4f0c2a7f412675">   75</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_CH_LENGTH sizeof(dtls_client_hello_t) </span><span class="comment">/* no variable length fields! */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="dtls_8c.html#abd652cf0e4512727591d3ec8ca066ace">   76</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_COOKIE_LENGTH_MAX 32</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="dtls_8c.html#aa5a4609da11d9496490853de9c2bf6fa">   77</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_CH_LENGTH_MAX sizeof(dtls_client_hello_t) + DTLS_COOKIE_LENGTH_MAX + 12 + 26</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="dtls_8c.html#a85d3d5311baabdaa06b7824528eef4e5">   78</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_HV_LENGTH sizeof(dtls_hello_verify_t)</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="dtls_8c.html#afcca5dc5ebcc9eb8141ca0b49b647676">   79</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_SH_LENGTH (2 + DTLS_RANDOM_LENGTH + 1 + 2 + 1)</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="dtls_8c.html#a6570b93f9f19e6abceef85c566fe3696">   80</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_CE_LENGTH (3 + 3 + 27 + DTLS_EC_KEY_SIZE + DTLS_EC_KEY_SIZE)</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="dtls_8c.html#ad9481c39cd66eac3059df28aef1e9843">   81</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_SKEXEC_LENGTH (1 + 2 + 1 + 1 + DTLS_EC_KEY_SIZE + DTLS_EC_KEY_SIZE + 1 + 1 + 2 + 70)</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="dtls_8c.html#a4c0c656efcfd0e33595914171e51ae6d">   82</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_SKEXECPSK_LENGTH_MIN 2</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="dtls_8c.html#a8a4dc9af457241380a01c8e38fdc4e2d">   83</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_SKEXECPSK_LENGTH_MAX 2 + DTLS_PSK_MAX_CLIENT_IDENTITY_LEN</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="dtls_8c.html#a674da4ca826bf1206ec8053f4c9eb336">   84</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_CKXPSK_LENGTH_MIN 2</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="dtls_8c.html#a5ddccf12706c8d18d80b7759454ca164">   85</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_CKXEC_LENGTH (1 + 1 + DTLS_EC_KEY_SIZE + DTLS_EC_KEY_SIZE)</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="dtls_8c.html#a0bcce8fa79dc3187eb5f1655798ac816">   86</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_CV_LENGTH (1 + 1 + 2 + 1 + 1 + 1 + 1 + DTLS_EC_KEY_SIZE + 1 + 1 + DTLS_EC_KEY_SIZE)</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="dtls_8c.html#a21644ea2de742395df1e3b3281ba4f63">   87</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_FIN_LENGTH 12</span></div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="dtls_8c.html#a76388c15f1b77d3c5b9d8068e8c0a087">   89</a></span>&#160;<span class="preprocessor">#define HS_HDR_LENGTH  DTLS_RH_LENGTH + DTLS_HS_LENGTH</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="dtls_8c.html#a07a808dc78df3141fe5caba2a3e2226b">   90</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define HV_HDR_LENGTH  HS_HDR_LENGTH + DTLS_HV_LENGTH</span></div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="dtls_8c.html#aa5a8f0d3793bb3b194ca364b596ab01d">   92</a></span>&#160;<span class="preprocessor">#define HIGH(V) (((V) &gt;&gt; 8) &amp; 0xff)</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="dtls_8c.html#a69edf0296cf64026686d4ff4424d4e8f">   93</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define LOW(V)  ((V) &amp; 0xff)</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="dtls_8c.html#a35d050593196252c1826ac2e82cbac0b">   95</a></span>&#160;<span class="preprocessor">#define DTLS_RECORD_HEADER(M) ((dtls_record_header_t *)(M))</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="dtls_8c.html#a2cc930733d35ea870c7a0a131bee0d7a">   96</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define DTLS_HANDSHAKE_HEADER(M) ((dtls_handshake_header_t *)(M))</span></div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="dtls_8c.html#a354c84e6c783c5d0cdbf905c27e77dc4">   98</a></span>&#160;<span class="preprocessor">#define HANDSHAKE(M) ((dtls_handshake_header_t *)((M) + DTLS_RH_LENGTH))</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="dtls_8c.html#a0800e26c09602d197e929fcc8ba783d5">   99</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define CLIENTHELLO(M) ((dtls_client_hello_t *)((M) + HS_HDR_LENGTH))</span></div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="comment">/* The length check here should work because dtls_*_to_int() works on</span></div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="comment"> * unsigned char. Otherwise, broken messages could cause severe</span></div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="comment"> * trouble. Note that this macro jumps out of the current program flow</span></div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="comment"> * when the message is too short. Beware!</span></div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="dtls_8c.html#a09a0896d586ff27855ced6930cc17023">  106</a></span>&#160;<span class="preprocessor">#define SKIP_VAR_FIELD(P,L,T) {                     \</span></div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="preprocessor">    if (L &lt; dtls_ ## T ## _to_int(P) + sizeof(T))           \</span></div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;<span class="preprocessor">      goto error;                           \</span></div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span class="preprocessor">    L -= dtls_ ## T ## _to_int(P) + sizeof(T);              \</span></div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="preprocessor">    P += dtls_ ## T ## _to_int(P) + sizeof(T);              \</span></div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;<span class="preprocessor">  }</span></div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;<span class="comment">/* some constants for the PRF */</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"><a class="line" href="dtls_8c.html#abac8adda40bcb694e059e38f6ac115f9">  114</a></span>&#160;<span class="preprocessor">#define PRF_LABEL(Label) prf_label_##Label</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="dtls_8c.html#a83b260e812e69f1dae18497d167770a9">  115</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define PRF_LABEL_SIZE(Label) (sizeof(PRF_LABEL(Label)) - 1)</span></div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00117"></a><span class="lineno"><a class="line" href="dtls_8c.html#a784ec579660900e758a9b7de84150c9b">  117</a></span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="dtls_8c.html#a784ec579660900e758a9b7de84150c9b">prf_label_master</a>[] = <span class="stringliteral">&quot;master secret&quot;</span>;</div>
<div class="line"><a name="l00118"></a><span class="lineno"><a class="line" href="dtls_8c.html#a42886cd9a1fd728f47ea40d38dfabcda">  118</a></span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="dtls_8c.html#a42886cd9a1fd728f47ea40d38dfabcda">prf_label_key</a>[] = <span class="stringliteral">&quot;key expansion&quot;</span>;</div>
<div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="dtls_8c.html#abba2a2562813493d98b5671a4c5c082b">  119</a></span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="dtls_8c.html#abba2a2562813493d98b5671a4c5c082b">prf_label_client</a>[] = <span class="stringliteral">&quot;client&quot;</span>;</div>
<div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="dtls_8c.html#aacf8643991dec574dcb09a280357ae4f">  120</a></span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="dtls_8c.html#aacf8643991dec574dcb09a280357ae4f">prf_label_server</a>[] = <span class="stringliteral">&quot;server&quot;</span>;</div>
<div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="dtls_8c.html#a45d793d73836bf96dacb1d558f81b6c7">  121</a></span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="dtls_8c.html#a45d793d73836bf96dacb1d558f81b6c7">prf_label_finished</a>[] = <span class="stringliteral">&quot; finished&quot;</span>;</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;<span class="comment">/* first part of Raw public key, the is the start of the Subject Public Key */</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="dtls_8c.html#aecdb18ea2b899994542ec46b23528738">  124</a></span>&#160;<span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="dtls_8c.html#aecdb18ea2b899994542ec46b23528738">cert_asn1_header</a>[] = {</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;  0x30, 0x59, <span class="comment">/* SEQUENCE, length 89 bytes */</span></div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    0x30, 0x13, <span class="comment">/* SEQUENCE, length 19 bytes */</span></div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;      0x06, 0x07, <span class="comment">/* OBJECT IDENTIFIER ecPublicKey (1 2 840 10045 2 1) */</span></div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        0x2A, 0x86, 0x48, 0xCE, 0x3D, 0x02, 0x01,</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;      0x06, 0x08, <span class="comment">/* OBJECT IDENTIFIER prime256v1 (1 2 840 10045 3 1 7) */</span></div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;        0x2A, 0x86, 0x48, 0xCE, 0x3D, 0x03, 0x01, 0x07,</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;      0x03, 0x42, 0x00, <span class="comment">/* BIT STRING, length 66 bytes, 0 bits unused */</span></div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;         0x04 <span class="comment">/* uncompressed, followed by the r und s values of the public key */</span></div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;};</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;<span class="preprocessor">#ifdef WITH_CONTIKI</span></div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="preprocessor"></span>PROCESS(dtls_retransmit_process, <span class="stringliteral">&quot;DTLS retransmit process&quot;</span>);</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;<span class="keyword">static</span> <a class="code" href="structdtls__context__t.html">dtls_context_t</a> the_dtls_context;</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="structdtls__context__t.html">dtls_context_t</a> *</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<a class="code" href="dtls_8c.html#a9e02f1c6e70dab40e56d5131a259521a">malloc_context</a>() {</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;  <span class="keywordflow">return</span> &amp;the_dtls_context;</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;}</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<a class="code" href="dtls_8c.html#aa2f1fb16f297640b319ff0d864139ea5">free_context</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *context) {</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;}</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="preprocessor">#else </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="structdtls__context__t.html">dtls_context_t</a> *</div>
<div class="line"><a name="l00152"></a><span class="lineno"><a class="line" href="dtls_8c.html#a9e02f1c6e70dab40e56d5131a259521a">  152</a></span>&#160;<a class="code" href="dtls_8c.html#a9e02f1c6e70dab40e56d5131a259521a">malloc_context</a>() {</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;  <span class="keywordflow">return</span> (<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *)malloc(<span class="keyword">sizeof</span>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a>));</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;}</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="dtls_8c.html#aa2f1fb16f297640b319ff0d864139ea5">  157</a></span>&#160;<a class="code" href="dtls_8c.html#aa2f1fb16f297640b319ff0d864139ea5">free_context</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *context) {</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;  free(context);</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;}</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;<span class="keywordtype">void</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="dtls_8h.html#ac203466e393ac9030d405c8f0496e9cd">  163</a></span>&#160;<a class="code" href="dtls_8c.html#ac203466e393ac9030d405c8f0496e9cd">dtls_init</a>() {</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;  <a class="code" href="group__clock.html#ga8b340ad858b708dbc7bf40f784935c90">dtls_clock_init</a>();</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;  <a class="code" href="crypto_8c.html#a86e6ce9d4b4afcef355836955697f52c">crypto_init</a>();</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;  <a class="code" href="group__netq.html#ga9eba9e66570dcdfc933c6cf843694444">netq_init</a>();</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;  <a class="code" href="peer_8c.html#a0297e9d772bfca004a98462d9c7d2828">peer_init</a>();</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;}</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;<span class="comment">/* Calls cb_alert() with given arguments if defined, otherwise an</span></div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;<span class="comment"> * error message is logged and the result is -1. This is just an</span></div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;<span class="comment"> * internal helper.</span></div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"><a class="line" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">  174</a></span>&#160;<span class="preprocessor">#define CALL(Context, which, ...)                   \</span></div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;<span class="preprocessor">  ((Context)-&gt;h &amp;&amp; (Context)-&gt;h-&gt;which                  \</span></div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;<span class="preprocessor">   ? (Context)-&gt;h-&gt;which((Context), ##__VA_ARGS__)          \</span></div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;<span class="preprocessor">   : -1)</span></div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<a class="code" href="dtls_8c.html#aa89745c0af073102c9c350d28a84214d">dtls_send_multi</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;        <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *security , <a class="code" href="structsession__t.html">session_t</a> *session,</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> type, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *buf_array[],</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;        <span class="keywordtype">size_t</span> buf_len_array[], <span class="keywordtype">size_t</span> buf_array_len);</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00200"></a><span class="lineno"><a class="line" href="dtls_8c.html#afdd0d094bfd136f65455e23fda087cd6">  200</a></span>&#160;<a class="code" href="dtls_8c.html#afdd0d094bfd136f65455e23fda087cd6">dtls_send</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> type,</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;      <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *buf, <span class="keywordtype">size_t</span> buflen) {</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#aa89745c0af073102c9c350d28a84214d">dtls_send_multi</a>(ctx, peer, <a class="code" href="peer_8h.html#a48abcad7383e1db957af9b4fed030d52">dtls_security_params</a>(peer), &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>,</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;             type, &amp;buf, &amp;buflen, 1);</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;}</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="dtls_8c.html#a3742f5067d1b0693d6a41e70d4ecd5b5">dtls_stop_retransmission</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *context, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer);</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *</div>
<div class="line"><a name="l00212"></a><span class="lineno"><a class="line" href="dtls_8h.html#a3fd062108e5d0f48627ae644546824a6">  212</a></span>&#160;<a class="code" href="dtls_8c.html#a70333bea2db35153177347b5c7700cab">dtls_get_peer</a>(<span class="keyword">const</span> <a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <span class="keyword">const</span> <a class="code" href="structsession__t.html">session_t</a> *session) {</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;  <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *p = NULL;</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;<span class="preprocessor">#ifndef WITH_CONTIKI</span></div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;<span class="preprocessor"></span>  <a class="code" href="dtls_8c.html#a0ce6e5416f5479558116b881d3eb1ad6">HASH_FIND_PEER</a>(ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>, session, p);</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;<span class="preprocessor">#else </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">for</span> (p = <a class="code" href="t__list_8h.html#adb42e31bb4fe0df6ec1aa3494902968d">list_head</a>(ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>); p; p = <a class="code" href="t__list_8h.html#ae7f0bdad2409695760ffd8de55b6a99b">list_item_next</a>(p))</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="session_8c.html#a96f4d60f388d56d37b3e69261bea2417">dtls_session_equals</a>(&amp;p-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, session))</div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;      <span class="keywordflow">return</span> p;</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;<span class="preprocessor"></span>  </div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;  <span class="keywordflow">return</span> p;</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;}</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"><a class="line" href="dtls_8c.html#ae4a2961a027959f907145f82ca9107c3">  227</a></span>&#160;<a class="code" href="dtls_8c.html#ae4a2961a027959f907145f82ca9107c3">dtls_add_peer</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer) {</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;<span class="preprocessor">#ifndef WITH_CONTIKI</span></div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;<span class="preprocessor"></span>  <a class="code" href="dtls_8c.html#acf0d50c9f224c0677988f13e947e9523">HASH_ADD_PEER</a>(ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>, session, peer);</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;<span class="preprocessor">#else </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;<span class="preprocessor"></span>  <a class="code" href="t__list_8h.html#aee4e6fc5d9a6133555e7373c654b2120">list_add</a>(ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>, peer);</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;<span class="preprocessor"></span>}</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;</div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;<span class="keywordtype">int</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"><a class="line" href="dtls_8h.html#a4743f51c3197d290fc9a88e1f3a64928">  236</a></span>&#160;<a class="code" href="dtls_8c.html#a1e338587fb19c794c8d19bc2801f2eb2">dtls_write</a>(<span class="keyword">struct</span> <a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;       <a class="code" href="structsession__t.html">session_t</a> *dst, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *buf, <span class="keywordtype">size_t</span> len) {</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;  </div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;  <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer = <a class="code" href="dtls_8c.html#a70333bea2db35153177347b5c7700cab">dtls_get_peer</a>(ctx, dst);</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;  <span class="comment">/* Check if peer connection already exists */</span></div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;  <span class="keywordflow">if</span> (!peer) { <span class="comment">/* no ==&gt; create one */</span></div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;    <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;    <span class="comment">/* dtls_connect() returns a value greater than zero if a new</span></div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;<span class="comment">     * connection attempt is made, 0 for session reuse. */</span></div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;    res = <a class="code" href="dtls_8c.html#a187f5e145bb869a732fbed426929a4e9">dtls_connect</a>(ctx, dst);</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;    <span class="keywordflow">return</span> (res &gt;= 0) ? 0 : res;</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;  } <span class="keywordflow">else</span> { <span class="comment">/* a session exists, check if it is in state connected */</span></div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;    </div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;    <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a>) {</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;      <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#afdd0d094bfd136f65455e23fda087cd6">dtls_send</a>(ctx, peer, <a class="code" href="dtls_8h.html#a2e3ff1e96b8b7db8a3648beba35bfd0c">DTLS_CT_APPLICATION_DATA</a>, buf, len);</div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;    }</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;  }</div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;}</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00261"></a><span class="lineno"><a class="line" href="dtls_8c.html#a8546683053c19be38b23aa9042139f4b">  261</a></span>&#160;<a class="code" href="dtls_8c.html#a8546683053c19be38b23aa9042139f4b">dtls_get_cookie</a>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *msg, <span class="keywordtype">size_t</span> msglen, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> **cookie) {</div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;  <span class="comment">/* To access the cookie, we have to determine the session id&#39;s</span></div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;<span class="comment">   * length and skip the whole thing. */</span></div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;  <span class="keywordflow">if</span> (msglen &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#affe47ee08ad0e6a54d4f0c2a7f412675">DTLS_CH_LENGTH</a> + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>))</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;</div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(msg + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>) != <a class="code" href="dtls_8h.html#af0c44db3bf3a6a52e9ed271218daeaa6">DTLS_VERSION</a>)</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaa392c9a6bb02b01386a1c34dc1947652">DTLS_ALERT_PROTOCOL_VERSION</a>);</div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;  msglen -= <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#affe47ee08ad0e6a54d4f0c2a7f412675">DTLS_CH_LENGTH</a>;</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;  msg += <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#affe47ee08ad0e6a54d4f0c2a7f412675">DTLS_CH_LENGTH</a>;</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;  <a class="code" href="dtls_8c.html#a09a0896d586ff27855ced6930cc17023">SKIP_VAR_FIELD</a>(msg, msglen, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>); <span class="comment">/* skip session id */</span></div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;  <span class="keywordflow">if</span> (msglen &lt; (*msg &amp; 0xff) + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>))</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;  </div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;  *cookie = msg + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(msg);</div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160; error:</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;}</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00286"></a><span class="lineno"><a class="line" href="dtls_8c.html#a45841106ebcb5b1373c0312842b90943">  286</a></span>&#160;<a class="code" href="dtls_8c.html#a45841106ebcb5b1373c0312842b90943">dtls_create_cookie</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;           <a class="code" href="structsession__t.html">session_t</a> *session,</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;           <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *msg, <span class="keywordtype">size_t</span> msglen,</div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;           <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *cookie, <span class="keywordtype">int</span> *clen) {</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> buf[<a class="code" href="group__HMAC.html#ga3e84ddbef6bf0084252e16e6c547e332">DTLS_HMAC_MAX</a>];</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;  <span class="keywordtype">size_t</span> len, e;</div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;</div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;  <span class="comment">/* create cookie with HMAC-SHA256 over:</span></div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;<span class="comment">   * - SECRET</span></div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;<span class="comment">   * - session parameters (only IP address?)</span></div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;<span class="comment">   * - client version </span></div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;<span class="comment">   * - random gmt and bytes</span></div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;<span class="comment">   * - session id</span></div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;<span class="comment">   * - cipher_suites </span></div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;<span class="comment">   * - compression method</span></div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;<span class="comment">   */</span></div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;  <span class="comment">/* We use our own buffer as hmac_context instead of a dynamic buffer</span></div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;<span class="comment">   * created by dtls_hmac_new() to separate storage space for cookie</span></div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;<span class="comment">   * creation from storage that is used in real sessions. Note that</span></div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;<span class="comment">   * the buffer size must fit with the default hash algorithm (see</span></div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;<span class="comment">   * implementation of dtls_hmac_context_new()). */</span></div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;  <a class="code" href="structdtls__hmac__context__t.html">dtls_hmac_context_t</a> hmac_context;</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;  <a class="code" href="group__HMAC.html#gaa1eb35fcb2c2eb69eebaefa8eb4a790d">dtls_hmac_init</a>(&amp;hmac_context, ctx-&gt;<a class="code" href="structdtls__context__t.html#adb7dc6a53a7e00f2c4bbf726973e002f">cookie_secret</a>, <a class="code" href="dtls_8h.html#a44ec206b1d84aa3d83281a92ed7cc238">DTLS_COOKIE_SECRET_LENGTH</a>);</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;  <a class="code" href="group__HMAC.html#ga1ef9c88a0a2053b442413a9cea3deb73">dtls_hmac_update</a>(&amp;hmac_context, </div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;           (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *)&amp;session-&gt;<a class="code" href="structsession__t.html#a0bb4423cd29b415a4cf6c32d5d9a43e4">addr</a>, session-&gt;<a class="code" href="structsession__t.html#aed21682e9f971221d9f35f1266dea125">size</a>);</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;  <span class="comment">/* feed in the beginning of the Client Hello up to and including the</span></div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;<span class="comment">     session id */</span></div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;  e = <span class="keyword">sizeof</span>(<a class="code" href="dtls_8h.html#aa9ebc35a08295c2ae09d4248ba8e6456">dtls_client_hello_t</a>);</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;  e += (*(msg + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + e) &amp; 0xff) + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;  <span class="keywordflow">if</span> (e + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> &gt; msglen)</div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;  <a class="code" href="group__HMAC.html#ga1ef9c88a0a2053b442413a9cea3deb73">dtls_hmac_update</a>(&amp;hmac_context, msg + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>, e);</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;  </div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;  <span class="comment">/* skip cookie bytes and length byte */</span></div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;  e += *(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *)(msg + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + e) &amp; 0xff;</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;  e += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;  <span class="keywordflow">if</span> (e + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> &gt; msglen)</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;  <a class="code" href="group__HMAC.html#ga1ef9c88a0a2053b442413a9cea3deb73">dtls_hmac_update</a>(&amp;hmac_context, </div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;           msg + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + e,</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;           <a class="code" href="dtls_8c.html#aad633ed0a80e25b3884d119a8d8aeaff">dtls_get_fragment_length</a>(<a class="code" href="dtls_8c.html#a2cc930733d35ea870c7a0a131bee0d7a">DTLS_HANDSHAKE_HEADER</a>(msg)) - e);</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;</div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;  len = <a class="code" href="group__HMAC.html#gab98c992f3f9cc3c2d75077ddd46049bf">dtls_hmac_finalize</a>(&amp;hmac_context, buf);</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;  <span class="keywordflow">if</span> (len &lt; *clen) {</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;    memset(cookie + len, 0, *clen - len);</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;    *clen = len;</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;  }</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;  </div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;  memcpy(cookie, buf, *clen);</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;}</div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;<span class="preprocessor">#ifdef DTLS_CHECK_CONTENTTYPE</span></div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;<span class="preprocessor"></span><span class="comment">/* used to check if a received datagram contains a DTLS message */</span></div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;<span class="keyword">static</span> <span class="keywordtype">char</span> <span class="keyword">const</span> content_types[] = { </div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;  <a class="code" href="dtls_8h.html#a3114c327a12e3850e97c4cf8a0cc5c9d">DTLS_CT_CHANGE_CIPHER_SPEC</a>,</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;  <a class="code" href="dtls_8h.html#af8ce2230240b6d3c36b216ef459baff1">DTLS_CT_ALERT</a>,</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;  <a class="code" href="dtls_8h.html#a76965db5ec449b3c8a9a54c24a4d45dc">DTLS_CT_HANDSHAKE</a>,</div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;  <a class="code" href="dtls_8h.html#a2e3ff1e96b8b7db8a3648beba35bfd0c">DTLS_CT_APPLICATION_DATA</a>,</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;  0                 <span class="comment">/* end marker */</span></div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;};</div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;<span class="keyword">static</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00361"></a><span class="lineno"><a class="line" href="dtls_8c.html#aaafa285eb634873480c0ff429edd8064">  361</a></span>&#160;<a class="code" href="dtls_8c.html#aaafa285eb634873480c0ff429edd8064">is_record</a>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *msg, <span class="keywordtype">size_t</span> msglen) {</div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rlen = 0;</div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;</div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;  <span class="keywordflow">if</span> (msglen &gt;= <a class="code" href="dtls_8c.html#ae97c368900c13dc7074c09e8848afa8f">DTLS_RH_LENGTH</a>  <span class="comment">/* FIXME allow empty records? */</span></div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;#ifdef DTLS_CHECK_CONTENTTYPE</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;      &amp;&amp; strchr(content_types, msg[0])</div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;#endif</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;      &amp;&amp; msg[1] == <a class="code" href="dtls_8c.html#aa5a8f0d3793bb3b194ca364b596ab01d">HIGH</a>(<a class="code" href="dtls_8h.html#af0c44db3bf3a6a52e9ed271218daeaa6">DTLS_VERSION</a>)</div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;      &amp;&amp; msg[2] == <a class="code" href="dtls_8c.html#a69edf0296cf64026686d4ff4424d4e8f">LOW</a>(<a class="code" href="dtls_8h.html#af0c44db3bf3a6a52e9ed271218daeaa6">DTLS_VERSION</a>)) </div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;    {</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;      rlen = <a class="code" href="dtls_8c.html#ae97c368900c13dc7074c09e8848afa8f">DTLS_RH_LENGTH</a> + </div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;    <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(<a class="code" href="dtls_8c.html#a35d050593196252c1826ac2e82cbac0b">DTLS_RECORD_HEADER</a>(msg)-&gt;length);</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;      </div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;      <span class="comment">/* we do not accept wrong length field in record header */</span></div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;      <span class="keywordflow">if</span> (rlen &gt; msglen)    </div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;    rlen = 0;</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;  } </div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;  </div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;  <span class="keywordflow">return</span> rlen;</div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;}</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;</div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *</div>
<div class="line"><a name="l00390"></a><span class="lineno"><a class="line" href="dtls_8c.html#a734cf32b1c8b99e21d57006da24fd808">  390</a></span>&#160;<a class="code" href="dtls_8c.html#a734cf32b1c8b99e21d57006da24fd808">dtls_set_record_header</a>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> type, <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *security,</div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;               <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *buf) {</div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;  </div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(buf, type);</div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;  buf += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;</div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(buf, <a class="code" href="dtls_8h.html#af0c44db3bf3a6a52e9ed271218daeaa6">DTLS_VERSION</a>);</div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;  buf += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;  <span class="keywordflow">if</span> (security) {</div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(buf, security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">epoch</a>);</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;    buf += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;</div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;    <a class="code" href="numeric_8h.html#abe324cc4e62d03bdecf457382ba213c8">dtls_int_to_uint48</a>(buf, security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a100dc82ee41004df1d9f211873332f87">rseq</a>);</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;    buf += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a0749f1df578b26eccab986b0d8abaa56">uint48</a>);</div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;</div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;    <span class="comment">/* increment record sequence counter by 1 */</span></div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;    security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a100dc82ee41004df1d9f211873332f87">rseq</a>++;</div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;    memset(buf, 0, <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>) + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a0749f1df578b26eccab986b0d8abaa56">uint48</a>));</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;    buf += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>) + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a0749f1df578b26eccab986b0d8abaa56">uint48</a>);</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;  }</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;</div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;  memset(buf, 0, <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>));</div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;  <span class="keywordflow">return</span> buf + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;}</div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;</div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *</div>
<div class="line"><a name="l00424"></a><span class="lineno"><a class="line" href="dtls_8c.html#ab43d3a34ddaf0f5bfaa2b0b3e76e25d1">  424</a></span>&#160;<a class="code" href="dtls_8c.html#ab43d3a34ddaf0f5bfaa2b0b3e76e25d1">dtls_set_handshake_header</a>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> type, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, </div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;              <span class="keywordtype">int</span> length, </div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;              <span class="keywordtype">int</span> frag_offset, <span class="keywordtype">int</span> frag_length, </div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;              <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *buf) {</div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;  </div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(buf, type);</div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;  buf += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;</div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;  <a class="code" href="numeric_8h.html#aff276cdd846cd194a21e9c61549292f6">dtls_int_to_uint24</a>(buf, length);</div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;  buf += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">uint24</a>);</div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;</div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;  <span class="keywordflow">if</span> (peer &amp;&amp; peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>) {</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;    <span class="comment">/* and copy the result to buf */</span></div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(buf, peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a694ce15382e7504a750a1b102ad8ec32">mseq_s</a>);</div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;</div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;    <span class="comment">/* increment handshake message sequence counter by 1 */</span></div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;    peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a694ce15382e7504a750a1b102ad8ec32">mseq_s</a>++;</div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;    memset(buf, 0, <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>));    </div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;  }</div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;  buf += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;  </div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;  <a class="code" href="numeric_8h.html#aff276cdd846cd194a21e9c61549292f6">dtls_int_to_uint24</a>(buf, frag_offset);</div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;  buf += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">uint24</a>);</div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;</div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;  <a class="code" href="numeric_8h.html#aff276cdd846cd194a21e9c61549292f6">dtls_int_to_uint24</a>(buf, frag_length);</div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;  buf += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">uint24</a>);</div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;  </div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;  <span class="keywordflow">return</span> buf;</div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;}</div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;</div>
<div class="line"><a name="l00456"></a><span class="lineno"><a class="line" href="dtls_8c.html#ae35671d94ccea5f335546ce409aed601">  456</a></span>&#160;<span class="keyword">static</span> <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> <a class="code" href="dtls_8c.html#ae35671d94ccea5f335546ce409aed601">compression_methods</a>[] = {</div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;  <a class="code" href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2ac5b79ee16e8c0e46873fa63fdb1ab9ca">TLS_COMPRESSION_NULL</a></div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;};</div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;</div>
<div class="line"><a name="l00461"></a><span class="lineno"><a class="line" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">  461</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(<a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59b">dtls_cipher_t</a> cipher)</div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;{</div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> cipher == <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba197892e216f63ddbc91c2b006a2d4c1e">TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8</a>;</div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;<span class="preprocessor"></span>}</div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;</div>
<div class="line"><a name="l00471"></a><span class="lineno"><a class="line" href="dtls_8c.html#a8bb6e8bb947b943d2af4c1886a8e72ba">  471</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="dtls_8c.html#a8bb6e8bb947b943d2af4c1886a8e72ba">is_tls_psk_with_aes_128_ccm_8</a>(<a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59b">dtls_cipher_t</a> cipher)</div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;{</div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;<span class="preprocessor">#ifdef DTLS_PSK</span></div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> cipher == <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba39a3062f136db88f648ce514a591fac8">TLS_PSK_WITH_AES_128_CCM_8</a>;</div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_PSK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;<span class="preprocessor"></span>}</div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;</div>
<div class="line"><a name="l00481"></a><span class="lineno"><a class="line" href="dtls_8c.html#a3bbccb275cb23e84c0a148a157955770">  481</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="dtls_8c.html#a3bbccb275cb23e84c0a148a157955770">is_psk_supported</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx)</div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;{</div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;<span class="preprocessor">#ifdef DTLS_PSK</span></div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> ctx &amp;&amp; ctx-&gt;<a class="code" href="structdtls__context__t.html#a460737bda0d200538c00ef7877b339cd">h</a> &amp;&amp; ctx-&gt;<a class="code" href="structdtls__context__t.html#a460737bda0d200538c00ef7877b339cd">h</a>-&gt;get_psk_info;</div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_PSK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;<span class="preprocessor"></span>}</div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;</div>
<div class="line"><a name="l00491"></a><span class="lineno"><a class="line" href="dtls_8c.html#abb41f4bb9b8e4218ef5115ce70ebdc21">  491</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="dtls_8c.html#abb41f4bb9b8e4218ef5115ce70ebdc21">is_ecdsa_supported</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <span class="keywordtype">int</span> is_client)</div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;{</div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> ctx &amp;&amp; ctx-&gt;<a class="code" href="structdtls__context__t.html#a460737bda0d200538c00ef7877b339cd">h</a> &amp;&amp; ((!is_client &amp;&amp; ctx-&gt;<a class="code" href="structdtls__context__t.html#a460737bda0d200538c00ef7877b339cd">h</a>-&gt;get_ecdsa_key) || </div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;               (is_client &amp;&amp; ctx-&gt;<a class="code" href="structdtls__context__t.html#a460737bda0d200538c00ef7877b339cd">h</a>-&gt;verify_ecdsa_key));</div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;<span class="preprocessor"></span>}</div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;</div>
<div class="line"><a name="l00503"></a><span class="lineno"><a class="line" href="dtls_8c.html#a599f0d6e9134869e55b64c4f8720ebfa">  503</a></span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="dtls_8c.html#a599f0d6e9134869e55b64c4f8720ebfa">is_ecdsa_client_auth_supported</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx)</div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;{</div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> ctx &amp;&amp; ctx-&gt;<a class="code" href="structdtls__context__t.html#a460737bda0d200538c00ef7877b339cd">h</a> &amp;&amp; ctx-&gt;<a class="code" href="structdtls__context__t.html#a460737bda0d200538c00ef7877b339cd">h</a>-&gt;get_ecdsa_key &amp;&amp; ctx-&gt;<a class="code" href="structdtls__context__t.html#a460737bda0d200538c00ef7877b339cd">h</a>-&gt;verify_ecdsa_key;</div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;<span class="preprocessor"></span>}</div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;</div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00522"></a><span class="lineno"><a class="line" href="dtls_8c.html#a37965d10b44a63ea6adbf28b9dc79b75">  522</a></span>&#160;<a class="code" href="dtls_8c.html#a37965d10b44a63ea6adbf28b9dc79b75">known_cipher</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59b">dtls_cipher_t</a> code, <span class="keywordtype">int</span> is_client) {</div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;  <span class="keywordtype">int</span> psk;</div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;  <span class="keywordtype">int</span> ecdsa;</div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;</div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;  psk = <a class="code" href="dtls_8c.html#a3bbccb275cb23e84c0a148a157955770">is_psk_supported</a>(ctx);</div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;  ecdsa = <a class="code" href="dtls_8c.html#abb41f4bb9b8e4218ef5115ce70ebdc21">is_ecdsa_supported</a>(ctx, is_client);</div>
<div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160;  <span class="keywordflow">return</span> (psk &amp;&amp; <a class="code" href="dtls_8c.html#a8bb6e8bb947b943d2af4c1886a8e72ba">is_tls_psk_with_aes_128_ccm_8</a>(code)) ||</div>
<div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;     (ecdsa &amp;&amp; <a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(code));</div>
<div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160;}</div>
<div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;</div>
<div class="line"><a name="l00533"></a><span class="lineno"><a class="line" href="dtls_8c.html#a4b3eda5556d76e045b42b93055944ddd">  533</a></span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="dtls_8c.html#a4b3eda5556d76e045b42b93055944ddd">dtls_debug_keyblock</a>(<a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *config)</div>
<div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;{</div>
<div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160;  <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;key_block (%d bytes):\n&quot;</span>, <a class="code" href="crypto_8h.html#a147bfdc558c2ec69ffdf388ae19ae01c">dtls_kb_size</a>(config, peer-&gt;role));</div>
<div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;  client_MAC_secret&quot;</span>,</div>
<div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;          <a class="code" href="crypto_8h.html#a72899232c09d09b86326c6f234addc02">dtls_kb_client_mac_secret</a>(config, peer-&gt;role),</div>
<div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;          <a class="code" href="crypto_8h.html#a1f320854c9f4e9b2105649b3624976b0">dtls_kb_mac_secret_size</a>(config, peer-&gt;role));</div>
<div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;</div>
<div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;  server_MAC_secret&quot;</span>,</div>
<div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160;          <a class="code" href="crypto_8h.html#ac8fdf3770dcd956ca10d1044a57a7a3a">dtls_kb_server_mac_secret</a>(config, peer-&gt;role),</div>
<div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;          <a class="code" href="crypto_8h.html#a1f320854c9f4e9b2105649b3624976b0">dtls_kb_mac_secret_size</a>(config, peer-&gt;role));</div>
<div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;</div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;  client_write_key&quot;</span>,</div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;          <a class="code" href="crypto_8h.html#ab5659b0737d72a2fa1b1335952f9c305">dtls_kb_client_write_key</a>(config, peer-&gt;role),</div>
<div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;          <a class="code" href="crypto_8h.html#a726ef8efa2e072c3c5e1ea1019e716aa">dtls_kb_key_size</a>(config, peer-&gt;role));</div>
<div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;</div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;  server_write_key&quot;</span>,</div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;          <a class="code" href="crypto_8h.html#aea906786dcfa12acb320df731c8db7f6">dtls_kb_server_write_key</a>(config, peer-&gt;role),</div>
<div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;          <a class="code" href="crypto_8h.html#a726ef8efa2e072c3c5e1ea1019e716aa">dtls_kb_key_size</a>(config, peer-&gt;role));</div>
<div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160;</div>
<div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;  client_IV&quot;</span>,</div>
<div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160;          <a class="code" href="crypto_8h.html#a1d3c04e5d39477a525b5255ab3240094">dtls_kb_client_iv</a>(config, peer-&gt;role),</div>
<div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160;          <a class="code" href="crypto_8h.html#adcdadf1870e2acb2993b1a8726d26997">dtls_kb_iv_size</a>(config, peer-&gt;role));</div>
<div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;</div>
<div class="line"><a name="l00556"></a><span class="lineno">  556</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;  server_IV&quot;</span>,</div>
<div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;          <a class="code" href="crypto_8h.html#acdd95c24ec6aebf14dac6ee4386a79be">dtls_kb_server_iv</a>(config, peer-&gt;role),</div>
<div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;          <a class="code" href="crypto_8h.html#adcdadf1870e2acb2993b1a8726d26997">dtls_kb_iv_size</a>(config, peer-&gt;role));</div>
<div class="line"><a name="l00559"></a><span class="lineno">  559</span>&#160;}</div>
<div class="line"><a name="l00560"></a><span class="lineno">  560</span>&#160;</div>
<div class="line"><a name="l00565"></a><span class="lineno"><a class="line" href="dtls_8c.html#a00707f0f82235a2432338e77dae0911d">  565</a></span>&#160;<span class="keyword">static</span> <span class="keywordtype">char</span> *<a class="code" href="dtls_8c.html#a00707f0f82235a2432338e77dae0911d">dtls_handshake_type_to_name</a>(<span class="keywordtype">int</span> type)</div>
<div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;{</div>
<div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160;  <span class="keywordflow">switch</span> (type) {</div>
<div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a66566dfd30b8ab388c08b4cde6c667cc">DTLS_HT_HELLO_REQUEST</a>:</div>
<div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;hello_request&quot;</span>;</div>
<div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a25f0afef67a1fd8d9e3e61074d11e2f5">DTLS_HT_CLIENT_HELLO</a>:</div>
<div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;client_hello&quot;</span>;</div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#ad5882a5ff4073ffefa266bb2c4a1ee3c">DTLS_HT_SERVER_HELLO</a>:</div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;server_hello&quot;</span>;</div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#ab04f98f1863c785fabd97925c9746f7d">DTLS_HT_HELLO_VERIFY_REQUEST</a>:</div>
<div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;hello_verify_request&quot;</span>;</div>
<div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a55a0a899d7f151e7f53b76fe8a82c10e">DTLS_HT_CERTIFICATE</a>:</div>
<div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;certificate&quot;</span>;</div>
<div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#aab327e17614cf2902c5fc6169466613f">DTLS_HT_SERVER_KEY_EXCHANGE</a>:</div>
<div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;server_key_exchange&quot;</span>;</div>
<div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a6f49d7b0a6e9190d71d51b1ee9ff3bd5">DTLS_HT_CERTIFICATE_REQUEST</a>:</div>
<div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;certificate_request&quot;</span>;</div>
<div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a44399f223a3e1c8a8bf3fc638a06a4d7">DTLS_HT_SERVER_HELLO_DONE</a>:</div>
<div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;server_hello_done&quot;</span>;</div>
<div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a9abc650dd8339a227ddd165ede9350d0">DTLS_HT_CERTIFICATE_VERIFY</a>:</div>
<div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;certificate_verify&quot;</span>;</div>
<div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a577885c74492a460729a451f33a894c4">DTLS_HT_CLIENT_KEY_EXCHANGE</a>:</div>
<div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;client_key_exchange&quot;</span>;</div>
<div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a16b49d03e041d43b60e1b7bacf35daad">DTLS_HT_FINISHED</a>:</div>
<div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;finished&quot;</span>;</div>
<div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;    <span class="keywordflow">return</span> <span class="stringliteral">&quot;unknown&quot;</span>;</div>
<div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;  }</div>
<div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160;}</div>
<div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160;</div>
<div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00599"></a><span class="lineno"><a class="line" href="dtls_8c.html#a94199c9fa65db19e0f761e3ff973eb4b">  599</a></span>&#160;<a class="code" href="dtls_8c.html#a94199c9fa65db19e0f761e3ff973eb4b">calculate_key_block</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;            <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *handshake,</div>
<div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;            <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;            <a class="code" href="structsession__t.html">session_t</a> *session,</div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;            <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8">dtls_peer_type</a> role) {</div>
<div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pre_master_secret;</div>
<div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;  <span class="keywordtype">int</span> pre_master_len = 0;</div>
<div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160;  <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *security = <a class="code" href="peer_8h.html#ab6e209f206f570eed246530ec7960943">dtls_security_params_next</a>(peer);</div>
<div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> master_secret[<a class="code" href="crypto_8h.html#a2648582ddf4c82abc01d8388bd3f15db">DTLS_MASTER_SECRET_LENGTH</a>];</div>
<div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;</div>
<div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;  <span class="keywordflow">if</span> (!security) {</div>
<div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;  }</div>
<div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;</div>
<div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;  pre_master_secret = security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a1c3a56ea4af8ff71e1ffe77221541f4d">key_block</a>;</div>
<div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;</div>
<div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;  <span class="keywordflow">switch</span> (handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>) {</div>
<div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;<span class="preprocessor">#ifdef DTLS_PSK</span></div>
<div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">case</span> <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba39a3062f136db88f648ce514a591fac8">TLS_PSK_WITH_AES_128_CCM_8</a>: {</div>
<div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> psk[<a class="code" href="crypto_8h.html#a59cd7c0b8724e1f9b910611623396080">DTLS_PSK_MAX_KEY_LEN</a>];</div>
<div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160;    <span class="keywordtype">int</span> len;</div>
<div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;</div>
<div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;    len = <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, get_psk_info, session, <a class="code" href="dtls_8h.html#a36eda3add5e2d12a3b5e2b6fe7038e01a1d64c04f18b370cf742595dc91098db4">DTLS_PSK_KEY</a>,</div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;           handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.identity,</div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;           handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.id_length,</div>
<div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;           psk, <a class="code" href="crypto_8h.html#a59cd7c0b8724e1f9b910611623396080">DTLS_PSK_MAX_KEY_LEN</a>);</div>
<div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;    <span class="keywordflow">if</span> (len &lt; 0) {</div>
<div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;      <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;no psk key for session available\n&quot;</span>);</div>
<div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160;      <span class="keywordflow">return</span> len;</div>
<div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;    }</div>
<div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;  <span class="comment">/* Temporarily use the key_block storage space for the pre master secret. */</span></div>
<div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160;    pre_master_len = <a class="code" href="crypto_8c.html#aa53dfed4868e257d2485024b5c170bae">dtls_psk_pre_master_secret</a>(psk, len,</div>
<div class="line"><a name="l00631"></a><span class="lineno">  631</span>&#160;                        pre_master_secret,</div>
<div class="line"><a name="l00632"></a><span class="lineno">  632</span>&#160;                        <a class="code" href="crypto_8h.html#a0df6db4f8c29f2b0aa5a1363b4f9127f">MAX_KEYBLOCK_LENGTH</a>);</div>
<div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160;</div>
<div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160;    <a class="code" href="debug_8h.html#a24b1e8ecaa65f684d879ed9d5c37119d">dtls_debug_hexdump</a>(<span class="stringliteral">&quot;psk&quot;</span>, psk, len);</div>
<div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160;</div>
<div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160;    memset(psk, 0, <a class="code" href="crypto_8h.html#a59cd7c0b8724e1f9b910611623396080">DTLS_PSK_MAX_KEY_LEN</a>);</div>
<div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160;    <span class="keywordflow">if</span> (pre_master_len &lt; 0) {</div>
<div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160;      <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;the psk was too long, for the pre master secret\n&quot;</span>);</div>
<div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160;    }</div>
<div class="line"><a name="l00641"></a><span class="lineno">  641</span>&#160;</div>
<div class="line"><a name="l00642"></a><span class="lineno">  642</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00643"></a><span class="lineno">  643</span>&#160;  }</div>
<div class="line"><a name="l00644"></a><span class="lineno">  644</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_PSK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00645"></a><span class="lineno">  645</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">case</span> <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba197892e216f63ddbc91c2b006a2d4c1e">TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8</a>: {</div>
<div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160;    pre_master_len = <a class="code" href="crypto_8c.html#a5f9937088ea2e1d19e7d472fecae9aaa">dtls_ecdh_pre_master_secret</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.own_eph_priv,</div>
<div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;                         handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_x,</div>
<div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160;                         handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y,</div>
<div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160;                         <span class="keyword">sizeof</span>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.own_eph_priv),</div>
<div class="line"><a name="l00651"></a><span class="lineno">  651</span>&#160;                         pre_master_secret,</div>
<div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160;                         <a class="code" href="crypto_8h.html#a0df6db4f8c29f2b0aa5a1363b4f9127f">MAX_KEYBLOCK_LENGTH</a>);</div>
<div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160;    <span class="keywordflow">if</span> (pre_master_len &lt; 0) {</div>
<div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160;      <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;the curve was too long, for the pre master secret\n&quot;</span>);</div>
<div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160;    }</div>
<div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160;  }</div>
<div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160;    <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;calculate_key_block: unknown cipher\n&quot;</span>);</div>
<div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;  }</div>
<div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;</div>
<div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;client_random&quot;</span>, handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.client, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>);</div>
<div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;server_random&quot;</span>, handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.server, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>);</div>
<div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;pre_master_secret&quot;</span>, pre_master_secret, pre_master_len);</div>
<div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160;</div>
<div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;  <a class="code" href="crypto_8c.html#a5e47576e502b5a6255f1b489a4915512">dtls_prf</a>(pre_master_secret, pre_master_len,</div>
<div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160;       <a class="code" href="dtls_8c.html#abac8adda40bcb694e059e38f6ac115f9">PRF_LABEL</a>(master), <a class="code" href="dtls_8c.html#a83b260e812e69f1dae18497d167770a9">PRF_LABEL_SIZE</a>(master),</div>
<div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;       handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.client, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>,</div>
<div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160;       handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.server, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>,</div>
<div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160;       master_secret,</div>
<div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;       <a class="code" href="crypto_8h.html#a2648582ddf4c82abc01d8388bd3f15db">DTLS_MASTER_SECRET_LENGTH</a>);</div>
<div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160;</div>
<div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;master_secret&quot;</span>, master_secret, <a class="code" href="crypto_8h.html#a2648582ddf4c82abc01d8388bd3f15db">DTLS_MASTER_SECRET_LENGTH</a>);</div>
<div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;</div>
<div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;  <span class="comment">/* create key_block from master_secret</span></div>
<div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160;<span class="comment">   * key_block = PRF(master_secret,</span></div>
<div class="line"><a name="l00680"></a><span class="lineno">  680</span>&#160;<span class="comment">                    &quot;key expansion&quot; + tmp.random.server + tmp.random.client) */</span></div>
<div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160;</div>
<div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160;  <a class="code" href="crypto_8c.html#a5e47576e502b5a6255f1b489a4915512">dtls_prf</a>(master_secret,</div>
<div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;       <a class="code" href="crypto_8h.html#a2648582ddf4c82abc01d8388bd3f15db">DTLS_MASTER_SECRET_LENGTH</a>,</div>
<div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160;       <a class="code" href="dtls_8c.html#abac8adda40bcb694e059e38f6ac115f9">PRF_LABEL</a>(key), <a class="code" href="dtls_8c.html#a83b260e812e69f1dae18497d167770a9">PRF_LABEL_SIZE</a>(key),</div>
<div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;       handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.server, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>,</div>
<div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;       handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.client, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>,</div>
<div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160;       security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a1c3a56ea4af8ff71e1ffe77221541f4d">key_block</a>,</div>
<div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160;       <a class="code" href="crypto_8h.html#a147bfdc558c2ec69ffdf388ae19ae01c">dtls_kb_size</a>(security, role));</div>
<div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;</div>
<div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;  memcpy(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a21ba88c7b062772beb75c5570d257898">master_secret</a>, master_secret, <a class="code" href="crypto_8h.html#a2648582ddf4c82abc01d8388bd3f15db">DTLS_MASTER_SECRET_LENGTH</a>);</div>
<div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;  <a class="code" href="dtls_8c.html#a4b3eda5556d76e045b42b93055944ddd">dtls_debug_keyblock</a>(security);</div>
<div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160;</div>
<div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;  security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a21d9fac709d739535b0cbecce4c18830">cipher</a> = handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>;</div>
<div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;  security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a6a72df7ab1151f81e49d464175fcaf2a">compression</a> = handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a67f85371953c8ae07ec110cb39c13125">compression</a>;</div>
<div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;  security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a100dc82ee41004df1d9f211873332f87">rseq</a> = 0;</div>
<div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;</div>
<div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;}</div>
<div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160;</div>
<div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160;<span class="comment">/* TODO: add a generic method which iterates over a list and searches for a specific key */</span></div>
<div class="line"><a name="l00701"></a><span class="lineno"><a class="line" href="dtls_8c.html#ad699a00b7ff5a71fa5b7fbc79a4dd9a8">  701</a></span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="dtls_8c.html#ad699a00b7ff5a71fa5b7fbc79a4dd9a8">verify_ext_eliptic_curves</a>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length) {</div>
<div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;  <span class="keywordtype">int</span> i, curve_name;</div>
<div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160;</div>
<div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;  <span class="comment">/* length of curve list */</span></div>
<div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;  i = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;  <span class="keywordflow">if</span> (i + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>) != data_length) {</div>
<div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;the list of the supported elliptic curves should be tls extension length - 2\n&quot;</span>);</div>
<div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;  }</div>
<div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160;</div>
<div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;  <span class="keywordflow">for</span> (i = data_length - <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>); i &gt; 0; i -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>)) {</div>
<div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160;    <span class="comment">/* check if this curve is supported */</span></div>
<div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160;    curve_name = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160;</div>
<div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;    <span class="keywordflow">if</span> (curve_name == <a class="code" href="global_8h.html#a8095691f33c0ce6b22d205640ccc9417">TLS_EXT_ELLIPTIC_CURVES_SECP256R1</a>)</div>
<div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;      <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;  }</div>
<div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;</div>
<div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;  <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;no supported elliptic curve found\n&quot;</span>);</div>
<div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;}</div>
<div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160;</div>
<div class="line"><a name="l00725"></a><span class="lineno"><a class="line" href="dtls_8c.html#af073bf7cefa5e49e0c939e853678d417">  725</a></span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="dtls_8c.html#af073bf7cefa5e49e0c939e853678d417">verify_ext_cert_type</a>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length) {</div>
<div class="line"><a name="l00726"></a><span class="lineno">  726</span>&#160;  <span class="keywordtype">int</span> i, cert_type;</div>
<div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160;</div>
<div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160;  <span class="comment">/* length of cert type list */</span></div>
<div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;  i = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00731"></a><span class="lineno">  731</span>&#160;  <span class="keywordflow">if</span> (i + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>) != data_length) {</div>
<div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;the list of the supported certificate types should be tls extension length - 1\n&quot;</span>);</div>
<div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160;  }</div>
<div class="line"><a name="l00735"></a><span class="lineno">  735</span>&#160;</div>
<div class="line"><a name="l00736"></a><span class="lineno">  736</span>&#160;  <span class="keywordflow">for</span> (i = data_length - <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>); i &gt; 0; i -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>)) {</div>
<div class="line"><a name="l00737"></a><span class="lineno">  737</span>&#160;    <span class="comment">/* check if this cert type is supported */</span></div>
<div class="line"><a name="l00738"></a><span class="lineno">  738</span>&#160;    cert_type = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l00739"></a><span class="lineno">  739</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00740"></a><span class="lineno">  740</span>&#160;</div>
<div class="line"><a name="l00741"></a><span class="lineno">  741</span>&#160;    <span class="keywordflow">if</span> (cert_type == <a class="code" href="global_8h.html#af36d51830256b7d1bf4dbaa8590c19e4">TLS_CERT_TYPE_RAW_PUBLIC_KEY</a>)</div>
<div class="line"><a name="l00742"></a><span class="lineno">  742</span>&#160;      <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00743"></a><span class="lineno">  743</span>&#160;  }</div>
<div class="line"><a name="l00744"></a><span class="lineno">  744</span>&#160;</div>
<div class="line"><a name="l00745"></a><span class="lineno">  745</span>&#160;  <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;no supported certificate type found\n&quot;</span>);</div>
<div class="line"><a name="l00746"></a><span class="lineno">  746</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00747"></a><span class="lineno">  747</span>&#160;}</div>
<div class="line"><a name="l00748"></a><span class="lineno">  748</span>&#160;</div>
<div class="line"><a name="l00749"></a><span class="lineno"><a class="line" href="dtls_8c.html#a04a3580764ffd4f253ce6be858806c95">  749</a></span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="dtls_8c.html#a04a3580764ffd4f253ce6be858806c95">verify_ext_ec_point_formats</a>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length) {</div>
<div class="line"><a name="l00750"></a><span class="lineno">  750</span>&#160;  <span class="keywordtype">int</span> i, cert_type;</div>
<div class="line"><a name="l00751"></a><span class="lineno">  751</span>&#160;</div>
<div class="line"><a name="l00752"></a><span class="lineno">  752</span>&#160;  <span class="comment">/* length of ec_point_formats list */</span></div>
<div class="line"><a name="l00753"></a><span class="lineno">  753</span>&#160;  i = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l00754"></a><span class="lineno">  754</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160;  <span class="keywordflow">if</span> (i + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>) != data_length) {</div>
<div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;the list of the supported ec_point_formats should be tls extension length - 1\n&quot;</span>);</div>
<div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160;  }</div>
<div class="line"><a name="l00759"></a><span class="lineno">  759</span>&#160;</div>
<div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;  <span class="keywordflow">for</span> (i = data_length - <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>); i &gt; 0; i -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>)) {</div>
<div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160;    <span class="comment">/* check if this ec_point_format is supported */</span></div>
<div class="line"><a name="l00762"></a><span class="lineno">  762</span>&#160;    cert_type = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l00763"></a><span class="lineno">  763</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00764"></a><span class="lineno">  764</span>&#160;</div>
<div class="line"><a name="l00765"></a><span class="lineno">  765</span>&#160;    <span class="keywordflow">if</span> (cert_type == <a class="code" href="global_8h.html#af086ed2d0aea096be56bf7e46f8f72a6">TLS_EXT_EC_POINT_FORMATS_UNCOMPRESSED</a>)</div>
<div class="line"><a name="l00766"></a><span class="lineno">  766</span>&#160;      <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00767"></a><span class="lineno">  767</span>&#160;  }</div>
<div class="line"><a name="l00768"></a><span class="lineno">  768</span>&#160;</div>
<div class="line"><a name="l00769"></a><span class="lineno">  769</span>&#160;  <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;no supported ec_point_format found\n&quot;</span>);</div>
<div class="line"><a name="l00770"></a><span class="lineno">  770</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00771"></a><span class="lineno">  771</span>&#160;}</div>
<div class="line"><a name="l00772"></a><span class="lineno">  772</span>&#160;</div>
<div class="line"><a name="l00773"></a><span class="lineno">  773</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00774"></a><span class="lineno">  774</span>&#160;<span class="comment"> * Check for some TLS Extensions used by the ECDHE_ECDSA cipher.</span></div>
<div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00777"></a><span class="lineno"><a class="line" href="dtls_8c.html#ad8c8390d0a1592207c4ea6dd0a623a9a">  777</a></span>&#160;<a class="code" href="dtls_8c.html#ad8c8390d0a1592207c4ea6dd0a623a9a">dtls_check_tls_extension</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160;             <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length, <span class="keywordtype">int</span> client_hello)</div>
<div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160;{</div>
<div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160;  uint16_t i, j;</div>
<div class="line"><a name="l00781"></a><span class="lineno">  781</span>&#160;  <span class="keywordtype">int</span> ext_elliptic_curve = 0;</div>
<div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;  <span class="keywordtype">int</span> ext_client_cert_type = 0;</div>
<div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160;  <span class="keywordtype">int</span> ext_server_cert_type = 0;</div>
<div class="line"><a name="l00784"></a><span class="lineno">  784</span>&#160;  <span class="keywordtype">int</span> ext_ec_point_formats = 0;</div>
<div class="line"><a name="l00785"></a><span class="lineno">  785</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *handshake = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l00786"></a><span class="lineno">  786</span>&#160;</div>
<div class="line"><a name="l00787"></a><span class="lineno">  787</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>)) { </div>
<div class="line"><a name="l00788"></a><span class="lineno">  788</span>&#160;    <span class="comment">/* no tls extensions specified */</span></div>
<div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>)) {</div>
<div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;      <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160;    }</div>
<div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160;  }</div>
<div class="line"><a name="l00794"></a><span class="lineno">  794</span>&#160;</div>
<div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160;  <span class="comment">/* get the length of the tls extension list */</span></div>
<div class="line"><a name="l00796"></a><span class="lineno">  796</span>&#160;  j = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l00797"></a><span class="lineno">  797</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00798"></a><span class="lineno">  798</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00799"></a><span class="lineno">  799</span>&#160;</div>
<div class="line"><a name="l00800"></a><span class="lineno">  800</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; j)</div>
<div class="line"><a name="l00801"></a><span class="lineno">  801</span>&#160;    <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00802"></a><span class="lineno">  802</span>&#160;</div>
<div class="line"><a name="l00803"></a><span class="lineno">  803</span>&#160;  <span class="comment">/* check for TLS extensions needed for this cipher */</span></div>
<div class="line"><a name="l00804"></a><span class="lineno">  804</span>&#160;  <span class="keywordflow">while</span> (data_length) {</div>
<div class="line"><a name="l00805"></a><span class="lineno">  805</span>&#160;    <span class="keywordflow">if</span> (data_length &lt; <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>) * 2)</div>
<div class="line"><a name="l00806"></a><span class="lineno">  806</span>&#160;      <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00807"></a><span class="lineno">  807</span>&#160;</div>
<div class="line"><a name="l00808"></a><span class="lineno">  808</span>&#160;    <span class="comment">/* get the tls extension type */</span></div>
<div class="line"><a name="l00809"></a><span class="lineno">  809</span>&#160;    i = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l00810"></a><span class="lineno">  810</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00811"></a><span class="lineno">  811</span>&#160;    data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00812"></a><span class="lineno">  812</span>&#160;</div>
<div class="line"><a name="l00813"></a><span class="lineno">  813</span>&#160;    <span class="comment">/* get the length of the tls extension */</span></div>
<div class="line"><a name="l00814"></a><span class="lineno">  814</span>&#160;    j = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l00815"></a><span class="lineno">  815</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00816"></a><span class="lineno">  816</span>&#160;    data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00817"></a><span class="lineno">  817</span>&#160;</div>
<div class="line"><a name="l00818"></a><span class="lineno">  818</span>&#160;    <span class="keywordflow">if</span> (data_length &lt; j)</div>
<div class="line"><a name="l00819"></a><span class="lineno">  819</span>&#160;      <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00820"></a><span class="lineno">  820</span>&#160;</div>
<div class="line"><a name="l00821"></a><span class="lineno">  821</span>&#160;    <span class="keywordflow">switch</span> (i) {</div>
<div class="line"><a name="l00822"></a><span class="lineno">  822</span>&#160;      <span class="keywordflow">case</span> <a class="code" href="global_8h.html#a7e080d630a40510f655bf6982c555063">TLS_EXT_ELLIPTIC_CURVES</a>:</div>
<div class="line"><a name="l00823"></a><span class="lineno">  823</span>&#160;        ext_elliptic_curve = 1;</div>
<div class="line"><a name="l00824"></a><span class="lineno">  824</span>&#160;        <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#ad699a00b7ff5a71fa5b7fbc79a4dd9a8">verify_ext_eliptic_curves</a>(data, j))</div>
<div class="line"><a name="l00825"></a><span class="lineno">  825</span>&#160;          <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00826"></a><span class="lineno">  826</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00827"></a><span class="lineno">  827</span>&#160;      <span class="keywordflow">case</span> <a class="code" href="global_8h.html#a0074adc0b2543a913a597e510caf27b0">TLS_EXT_CLIENT_CERTIFICATE_TYPE</a>:</div>
<div class="line"><a name="l00828"></a><span class="lineno">  828</span>&#160;        ext_client_cert_type = 1;</div>
<div class="line"><a name="l00829"></a><span class="lineno">  829</span>&#160;        <span class="keywordflow">if</span> (client_hello) {</div>
<div class="line"><a name="l00830"></a><span class="lineno">  830</span>&#160;      <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#af073bf7cefa5e49e0c939e853678d417">verify_ext_cert_type</a>(data, j))</div>
<div class="line"><a name="l00831"></a><span class="lineno">  831</span>&#160;            <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00832"></a><span class="lineno">  832</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00833"></a><span class="lineno">  833</span>&#160;      <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != <a class="code" href="global_8h.html#af36d51830256b7d1bf4dbaa8590c19e4">TLS_CERT_TYPE_RAW_PUBLIC_KEY</a>)</div>
<div class="line"><a name="l00834"></a><span class="lineno">  834</span>&#160;        <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00835"></a><span class="lineno">  835</span>&#160;        }</div>
<div class="line"><a name="l00836"></a><span class="lineno">  836</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00837"></a><span class="lineno">  837</span>&#160;      <span class="keywordflow">case</span> <a class="code" href="global_8h.html#ad465b86d1841ddd6c2209ff304895a95">TLS_EXT_SERVER_CERTIFICATE_TYPE</a>:</div>
<div class="line"><a name="l00838"></a><span class="lineno">  838</span>&#160;        ext_server_cert_type = 1;</div>
<div class="line"><a name="l00839"></a><span class="lineno">  839</span>&#160;        <span class="keywordflow">if</span> (client_hello) {</div>
<div class="line"><a name="l00840"></a><span class="lineno">  840</span>&#160;      <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#af073bf7cefa5e49e0c939e853678d417">verify_ext_cert_type</a>(data, j))</div>
<div class="line"><a name="l00841"></a><span class="lineno">  841</span>&#160;            <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00842"></a><span class="lineno">  842</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00843"></a><span class="lineno">  843</span>&#160;      <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != <a class="code" href="global_8h.html#af36d51830256b7d1bf4dbaa8590c19e4">TLS_CERT_TYPE_RAW_PUBLIC_KEY</a>)</div>
<div class="line"><a name="l00844"></a><span class="lineno">  844</span>&#160;        <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00845"></a><span class="lineno">  845</span>&#160;        }</div>
<div class="line"><a name="l00846"></a><span class="lineno">  846</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00847"></a><span class="lineno">  847</span>&#160;      <span class="keywordflow">case</span> <a class="code" href="global_8h.html#a5d17863db920927ef8160547541b58e3">TLS_EXT_EC_POINT_FORMATS</a>:</div>
<div class="line"><a name="l00848"></a><span class="lineno">  848</span>&#160;        ext_ec_point_formats = 1;</div>
<div class="line"><a name="l00849"></a><span class="lineno">  849</span>&#160;        <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a04a3580764ffd4f253ce6be858806c95">verify_ext_ec_point_formats</a>(data, j))</div>
<div class="line"><a name="l00850"></a><span class="lineno">  850</span>&#160;          <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00851"></a><span class="lineno">  851</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00852"></a><span class="lineno">  852</span>&#160;      <span class="keywordflow">case</span> <a class="code" href="global_8h.html#ae136afe82bd9031a4c1c604de0cb0118">TLS_EXT_ENCRYPT_THEN_MAC</a>:</div>
<div class="line"><a name="l00853"></a><span class="lineno">  853</span>&#160;    <span class="comment">/* As only AEAD cipher suites are currently available, this</span></div>
<div class="line"><a name="l00854"></a><span class="lineno">  854</span>&#160;<span class="comment">     * extension can be skipped. </span></div>
<div class="line"><a name="l00855"></a><span class="lineno">  855</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00856"></a><span class="lineno">  856</span>&#160;    <a class="code" href="debug_8h.html#afde5692e7a590b0dd016d5753284c175">dtls_info</a>(<span class="stringliteral">&quot;skipped encrypt-then-mac extension\n&quot;</span>);</div>
<div class="line"><a name="l00857"></a><span class="lineno">  857</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00858"></a><span class="lineno">  858</span>&#160;      <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00859"></a><span class="lineno">  859</span>&#160;        <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;unsupported tls extension: %i\n&quot;</span>, i);</div>
<div class="line"><a name="l00860"></a><span class="lineno">  860</span>&#160;        <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00861"></a><span class="lineno">  861</span>&#160;    }</div>
<div class="line"><a name="l00862"></a><span class="lineno">  862</span>&#160;    data += j;</div>
<div class="line"><a name="l00863"></a><span class="lineno">  863</span>&#160;    data_length -= j;</div>
<div class="line"><a name="l00864"></a><span class="lineno">  864</span>&#160;  }</div>
<div class="line"><a name="l00865"></a><span class="lineno">  865</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>) &amp;&amp; client_hello) {</div>
<div class="line"><a name="l00866"></a><span class="lineno">  866</span>&#160;    <span class="keywordflow">if</span> (!ext_elliptic_curve || !ext_client_cert_type || !ext_server_cert_type</div>
<div class="line"><a name="l00867"></a><span class="lineno">  867</span>&#160;    || !ext_ec_point_formats) {</div>
<div class="line"><a name="l00868"></a><span class="lineno">  868</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;not all required tls extensions found in client hello\n&quot;</span>);</div>
<div class="line"><a name="l00869"></a><span class="lineno">  869</span>&#160;      <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00870"></a><span class="lineno">  870</span>&#160;    }</div>
<div class="line"><a name="l00871"></a><span class="lineno">  871</span>&#160;  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>) &amp;&amp; !client_hello) {</div>
<div class="line"><a name="l00872"></a><span class="lineno">  872</span>&#160;    <span class="keywordflow">if</span> (!ext_client_cert_type || !ext_server_cert_type) {</div>
<div class="line"><a name="l00873"></a><span class="lineno">  873</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;not all required tls extensions found in server hello\n&quot;</span>);</div>
<div class="line"><a name="l00874"></a><span class="lineno">  874</span>&#160;      <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00875"></a><span class="lineno">  875</span>&#160;    }</div>
<div class="line"><a name="l00876"></a><span class="lineno">  876</span>&#160;  }</div>
<div class="line"><a name="l00877"></a><span class="lineno">  877</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00878"></a><span class="lineno">  878</span>&#160;</div>
<div class="line"><a name="l00879"></a><span class="lineno">  879</span>&#160;error:</div>
<div class="line"><a name="l00880"></a><span class="lineno">  880</span>&#160;  <span class="keywordflow">if</span> (client_hello &amp;&amp; peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> == <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a>) {</div>
<div class="line"><a name="l00881"></a><span class="lineno">  881</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a4242f419ffdd4b83bfaa2a0935ed2b6d">dtls_alert_create</a>(<a class="code" href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871fa0f670b55dcb4ab291b869827d3c62ee7">DTLS_ALERT_LEVEL_WARNING</a>, <a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda8939a5d1777bf0dbdd8fa44e335137ab">DTLS_ALERT_NO_RENEGOTIATION</a>);</div>
<div class="line"><a name="l00882"></a><span class="lineno">  882</span>&#160;  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00883"></a><span class="lineno">  883</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160;  }</div>
<div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160;}</div>
<div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160;</div>
<div class="line"><a name="l00899"></a><span class="lineno">  899</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l00900"></a><span class="lineno"><a class="line" href="dtls_8c.html#a63f2c7e75b86bb2839b8fedf3fa9c93d">  900</a></span>&#160;<a class="code" href="dtls_8c.html#a63f2c7e75b86bb2839b8fedf3fa9c93d">dtls_update_parameters</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l00901"></a><span class="lineno">  901</span>&#160;               <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l00902"></a><span class="lineno">  902</span>&#160;               <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length) {</div>
<div class="line"><a name="l00903"></a><span class="lineno">  903</span>&#160;  <span class="keywordtype">int</span> i, j;</div>
<div class="line"><a name="l00904"></a><span class="lineno">  904</span>&#160;  <span class="keywordtype">int</span> ok;</div>
<div class="line"><a name="l00905"></a><span class="lineno">  905</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *config = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l00906"></a><span class="lineno">  906</span>&#160;  <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *security = <a class="code" href="peer_8h.html#a48abcad7383e1db957af9b4fed030d52">dtls_security_params</a>(peer);</div>
<div class="line"><a name="l00907"></a><span class="lineno">  907</span>&#160;</div>
<div class="line"><a name="l00908"></a><span class="lineno">  908</span>&#160;  assert(config);</div>
<div class="line"><a name="l00909"></a><span class="lineno">  909</span>&#160;  assert(data_length &gt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#affe47ee08ad0e6a54d4f0c2a7f412675">DTLS_CH_LENGTH</a>);</div>
<div class="line"><a name="l00910"></a><span class="lineno">  910</span>&#160;</div>
<div class="line"><a name="l00911"></a><span class="lineno">  911</span>&#160;  <span class="comment">/* skip the handshake header and client version information */</span></div>
<div class="line"><a name="l00912"></a><span class="lineno">  912</span>&#160;  data += <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00913"></a><span class="lineno">  913</span>&#160;  data_length -= <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00914"></a><span class="lineno">  914</span>&#160;</div>
<div class="line"><a name="l00915"></a><span class="lineno">  915</span>&#160;  <span class="comment">/* store client random in config */</span></div>
<div class="line"><a name="l00916"></a><span class="lineno">  916</span>&#160;  memcpy(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.client, data, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>);</div>
<div class="line"><a name="l00917"></a><span class="lineno">  917</span>&#160;  data += <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>;</div>
<div class="line"><a name="l00918"></a><span class="lineno">  918</span>&#160;  data_length -= <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>;</div>
<div class="line"><a name="l00919"></a><span class="lineno">  919</span>&#160;</div>
<div class="line"><a name="l00920"></a><span class="lineno">  920</span>&#160;  <span class="comment">/* Caution: SKIP_VAR_FIELD may jump to error: */</span></div>
<div class="line"><a name="l00921"></a><span class="lineno">  921</span>&#160;  <a class="code" href="dtls_8c.html#a09a0896d586ff27855ced6930cc17023">SKIP_VAR_FIELD</a>(data, data_length, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>); <span class="comment">/* skip session id */</span></div>
<div class="line"><a name="l00922"></a><span class="lineno">  922</span>&#160;  <a class="code" href="dtls_8c.html#a09a0896d586ff27855ced6930cc17023">SKIP_VAR_FIELD</a>(data, data_length, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>); <span class="comment">/* skip cookie */</span></div>
<div class="line"><a name="l00923"></a><span class="lineno">  923</span>&#160;</div>
<div class="line"><a name="l00924"></a><span class="lineno">  924</span>&#160;  i = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l00925"></a><span class="lineno">  925</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; i + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>)) {</div>
<div class="line"><a name="l00926"></a><span class="lineno">  926</span>&#160;    <span class="comment">/* Looks like we do not have a cipher nor compression. This is ok</span></div>
<div class="line"><a name="l00927"></a><span class="lineno">  927</span>&#160;<span class="comment">     * for renegotiation, but not for the initial handshake. */</span></div>
<div class="line"><a name="l00928"></a><span class="lineno">  928</span>&#160;</div>
<div class="line"><a name="l00929"></a><span class="lineno">  929</span>&#160;    <span class="keywordflow">if</span> (!security || security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a21d9fac709d739535b0cbecce4c18830">cipher</a> == <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd">TLS_NULL_WITH_NULL_NULL</a>)</div>
<div class="line"><a name="l00930"></a><span class="lineno">  930</span>&#160;      <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00931"></a><span class="lineno">  931</span>&#160;</div>
<div class="line"><a name="l00932"></a><span class="lineno">  932</span>&#160;    config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a> = security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a21d9fac709d739535b0cbecce4c18830">cipher</a>;</div>
<div class="line"><a name="l00933"></a><span class="lineno">  933</span>&#160;    config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a67f85371953c8ae07ec110cb39c13125">compression</a> = security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a6a72df7ab1151f81e49d464175fcaf2a">compression</a>;</div>
<div class="line"><a name="l00934"></a><span class="lineno">  934</span>&#160;</div>
<div class="line"><a name="l00935"></a><span class="lineno">  935</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00936"></a><span class="lineno">  936</span>&#160;  }</div>
<div class="line"><a name="l00937"></a><span class="lineno">  937</span>&#160;</div>
<div class="line"><a name="l00938"></a><span class="lineno">  938</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00939"></a><span class="lineno">  939</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>) + i;</div>
<div class="line"><a name="l00940"></a><span class="lineno">  940</span>&#160;</div>
<div class="line"><a name="l00941"></a><span class="lineno">  941</span>&#160;  ok = 0;</div>
<div class="line"><a name="l00942"></a><span class="lineno">  942</span>&#160;  <span class="keywordflow">while</span> (i &amp;&amp; !ok) {</div>
<div class="line"><a name="l00943"></a><span class="lineno">  943</span>&#160;    config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a> = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l00944"></a><span class="lineno">  944</span>&#160;    ok = <a class="code" href="dtls_8c.html#a37965d10b44a63ea6adbf28b9dc79b75">known_cipher</a>(ctx, config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>, 0);</div>
<div class="line"><a name="l00945"></a><span class="lineno">  945</span>&#160;    i -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00946"></a><span class="lineno">  946</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l00947"></a><span class="lineno">  947</span>&#160;  }</div>
<div class="line"><a name="l00948"></a><span class="lineno">  948</span>&#160;</div>
<div class="line"><a name="l00949"></a><span class="lineno">  949</span>&#160;  <span class="comment">/* skip remaining ciphers */</span></div>
<div class="line"><a name="l00950"></a><span class="lineno">  950</span>&#160;  data += i;</div>
<div class="line"><a name="l00951"></a><span class="lineno">  951</span>&#160;</div>
<div class="line"><a name="l00952"></a><span class="lineno">  952</span>&#160;  <span class="keywordflow">if</span> (!ok) {</div>
<div class="line"><a name="l00953"></a><span class="lineno">  953</span>&#160;    <span class="comment">/* reset config cipher to a well-defined value */</span></div>
<div class="line"><a name="l00954"></a><span class="lineno">  954</span>&#160;    config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a> = <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd">TLS_NULL_WITH_NULL_NULL</a>;</div>
<div class="line"><a name="l00955"></a><span class="lineno">  955</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;No matching cipher found\n&quot;</span>);</div>
<div class="line"><a name="l00956"></a><span class="lineno">  956</span>&#160;    <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00957"></a><span class="lineno">  957</span>&#160;  }</div>
<div class="line"><a name="l00958"></a><span class="lineno">  958</span>&#160;</div>
<div class="line"><a name="l00959"></a><span class="lineno">  959</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>)) { </div>
<div class="line"><a name="l00960"></a><span class="lineno">  960</span>&#160;    <span class="comment">/* no compression specified, take the current compression method */</span></div>
<div class="line"><a name="l00961"></a><span class="lineno">  961</span>&#160;    <span class="keywordflow">if</span> (security)</div>
<div class="line"><a name="l00962"></a><span class="lineno">  962</span>&#160;      config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a67f85371953c8ae07ec110cb39c13125">compression</a> = security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a6a72df7ab1151f81e49d464175fcaf2a">compression</a>;</div>
<div class="line"><a name="l00963"></a><span class="lineno">  963</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00964"></a><span class="lineno">  964</span>&#160;      config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a67f85371953c8ae07ec110cb39c13125">compression</a> = <a class="code" href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2ac5b79ee16e8c0e46873fa63fdb1ab9ca">TLS_COMPRESSION_NULL</a>;</div>
<div class="line"><a name="l00965"></a><span class="lineno">  965</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00966"></a><span class="lineno">  966</span>&#160;  }</div>
<div class="line"><a name="l00967"></a><span class="lineno">  967</span>&#160;</div>
<div class="line"><a name="l00968"></a><span class="lineno">  968</span>&#160;  i = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l00969"></a><span class="lineno">  969</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; i + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>))</div>
<div class="line"><a name="l00970"></a><span class="lineno">  970</span>&#160;    <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00971"></a><span class="lineno">  971</span>&#160;</div>
<div class="line"><a name="l00972"></a><span class="lineno">  972</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00973"></a><span class="lineno">  973</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>) + i;</div>
<div class="line"><a name="l00974"></a><span class="lineno">  974</span>&#160;</div>
<div class="line"><a name="l00975"></a><span class="lineno">  975</span>&#160;  ok = 0;</div>
<div class="line"><a name="l00976"></a><span class="lineno">  976</span>&#160;  <span class="keywordflow">while</span> (i &amp;&amp; !ok) {</div>
<div class="line"><a name="l00977"></a><span class="lineno">  977</span>&#160;    <span class="keywordflow">for</span> (j = 0; j &lt; <span class="keyword">sizeof</span>(<a class="code" href="dtls_8c.html#ae35671d94ccea5f335546ce409aed601">compression_methods</a>) / <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>); ++j)</div>
<div class="line"><a name="l00978"></a><span class="lineno">  978</span>&#160;      <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) == <a class="code" href="dtls_8c.html#ae35671d94ccea5f335546ce409aed601">compression_methods</a>[j]) {</div>
<div class="line"><a name="l00979"></a><span class="lineno">  979</span>&#160;    config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a67f85371953c8ae07ec110cb39c13125">compression</a> = <a class="code" href="dtls_8c.html#ae35671d94ccea5f335546ce409aed601">compression_methods</a>[j];</div>
<div class="line"><a name="l00980"></a><span class="lineno">  980</span>&#160;    ok = 1;</div>
<div class="line"><a name="l00981"></a><span class="lineno">  981</span>&#160;      }</div>
<div class="line"><a name="l00982"></a><span class="lineno">  982</span>&#160;    i -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l00983"></a><span class="lineno">  983</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);    </div>
<div class="line"><a name="l00984"></a><span class="lineno">  984</span>&#160;  }</div>
<div class="line"><a name="l00985"></a><span class="lineno">  985</span>&#160;</div>
<div class="line"><a name="l00986"></a><span class="lineno">  986</span>&#160;  <span class="keywordflow">if</span> (!ok) {</div>
<div class="line"><a name="l00987"></a><span class="lineno">  987</span>&#160;    <span class="comment">/* reset config cipher to a well-defined value */</span></div>
<div class="line"><a name="l00988"></a><span class="lineno">  988</span>&#160;    <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l00989"></a><span class="lineno">  989</span>&#160;  }</div>
<div class="line"><a name="l00990"></a><span class="lineno">  990</span>&#160;  </div>
<div class="line"><a name="l00991"></a><span class="lineno">  991</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#ad8c8390d0a1592207c4ea6dd0a623a9a">dtls_check_tls_extension</a>(peer, data, data_length, 1);</div>
<div class="line"><a name="l00992"></a><span class="lineno">  992</span>&#160;error:</div>
<div class="line"><a name="l00993"></a><span class="lineno">  993</span>&#160;  <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> == <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a>) {</div>
<div class="line"><a name="l00994"></a><span class="lineno">  994</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a4242f419ffdd4b83bfaa2a0935ed2b6d">dtls_alert_create</a>(<a class="code" href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871fa0f670b55dcb4ab291b869827d3c62ee7">DTLS_ALERT_LEVEL_WARNING</a>, <a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda8939a5d1777bf0dbdd8fa44e335137ab">DTLS_ALERT_NO_RENEGOTIATION</a>);</div>
<div class="line"><a name="l00995"></a><span class="lineno">  995</span>&#160;  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00996"></a><span class="lineno">  996</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l00997"></a><span class="lineno">  997</span>&#160;  }</div>
<div class="line"><a name="l00998"></a><span class="lineno">  998</span>&#160;}</div>
<div class="line"><a name="l00999"></a><span class="lineno">  999</span>&#160;</div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01005"></a><span class="lineno"><a class="line" href="dtls_8c.html#ab9251eac8015afc7985ff4398657ea3f"> 1005</a></span>&#160;<a class="code" href="dtls_8c.html#ab9251eac8015afc7985ff4398657ea3f">check_client_keyexchange</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>&#160;             <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *handshake,</div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>&#160;             <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> length) {</div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>&#160;</div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>)) {</div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>&#160;</div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>&#160;    <span class="keywordflow">if</span> (length &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#a5ddccf12706c8d18d80b7759454ca164">DTLS_CKXEC_LENGTH</a>) {</div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;The client key exchange is too short\n&quot;</span>);</div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>&#160;    }</div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>&#160;    data += <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>;</div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>&#160;</div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != 1 + 2 * <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>) {</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>&#160;      <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;expected 65 bytes long public point\n&quot;</span>);</div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>&#160;    }</div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>&#160;</div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != 4) {</div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>&#160;      <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;expected uncompressed public point\n&quot;</span>);</div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>&#160;    }</div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>&#160;</div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>&#160;    memcpy(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_x, data,</div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>&#160;       <span class="keyword">sizeof</span>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_x));</div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>&#160;    data += <span class="keyword">sizeof</span>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_x);</div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>&#160;</div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>&#160;    memcpy(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y, data,</div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>&#160;       <span class="keyword">sizeof</span>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y));</div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>&#160;    data += <span class="keyword">sizeof</span>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y);</div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>&#160;  }</div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#ifdef DTLS_PSK</span></div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8bb6e8bb947b943d2af4c1886a8e72ba">is_tls_psk_with_aes_128_ccm_8</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>)) {</div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>&#160;    <span class="keywordtype">int</span> id_length;</div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>&#160;</div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>&#160;    <span class="keywordflow">if</span> (length &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#a674da4ca826bf1206ec8053f4c9eb336">DTLS_CKXPSK_LENGTH_MIN</a>) {</div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;The client key exchange is too short\n&quot;</span>);</div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>&#160;    }</div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>&#160;    data += <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>;</div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>&#160;</div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>&#160;    id_length = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>&#160;</div>
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#a674da4ca826bf1206ec8053f4c9eb336">DTLS_CKXPSK_LENGTH_MIN</a> + id_length != length) {</div>
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;The identity has a wrong length\n&quot;</span>);</div>
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>&#160;    }</div>
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>&#160;</div>
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>&#160;    <span class="keywordflow">if</span> (id_length &gt; <a class="code" href="crypto_8h.html#ab96c8e0773a14d1ce1621eed1a78e2bd">DTLS_PSK_MAX_CLIENT_IDENTITY_LEN</a>) {</div>
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;please use a smaller client identity\n&quot;</span>);</div>
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>&#160;    }</div>
<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>&#160;</div>
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>&#160;    handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.id_length = id_length;</div>
<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>&#160;    memcpy(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.identity, data, id_length);</div>
<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>&#160;  }</div>
<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_PSK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>&#160;}</div>
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>&#160;</div>
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l01070"></a><span class="lineno"><a class="line" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7"> 1070</a></span>&#160;<a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> length) {</div>
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;add MAC data&quot;</span>, data, length);</div>
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>&#160;  <a class="code" href="hmac_8h.html#adb5ad07ab9a1adcdfdc20e13aa37bee6">dtls_hash_update</a>(&amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a991b95919538531d730f74045e4fe3b1">hs_hash</a>, data, length);</div>
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>&#160;}</div>
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>&#160;</div>
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l01076"></a><span class="lineno"><a class="line" href="dtls_8c.html#a22ab7a79391c2204337237949d69dad8"> 1076</a></span>&#160;<a class="code" href="dtls_8c.html#a22ab7a79391c2204337237949d69dad8">copy_hs_hash</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, <a class="code" href="hmac_8h.html#abb19650a510c73117da0e9b88d68f159">dtls_hash_ctx</a> *hs_hash) {</div>
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>&#160;  memcpy(hs_hash, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a991b95919538531d730f74045e4fe3b1">hs_hash</a>,</div>
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>&#160;     <span class="keyword">sizeof</span>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a991b95919538531d730f74045e4fe3b1">hs_hash</a>));</div>
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>&#160;}</div>
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>&#160;</div>
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">size_t</span></div>
<div class="line"><a name="l01082"></a><span class="lineno"><a class="line" href="dtls_8c.html#adb41bf916dc34af5cd79003a9243b727"> 1082</a></span>&#160;<a class="code" href="dtls_8c.html#adb41bf916dc34af5cd79003a9243b727">finalize_hs_hash</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *buf) {</div>
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="hmac_8h.html#a96801bbb62f4c9c872b22cd8e438e51e">dtls_hash_finalize</a>(buf, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a991b95919538531d730f74045e4fe3b1">hs_hash</a>);</div>
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>&#160;}</div>
<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>&#160;</div>
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l01087"></a><span class="lineno"><a class="line" href="dtls_8c.html#a82181208ec1e9f42896f0606e0036c1d"> 1087</a></span>&#160;<a class="code" href="dtls_8c.html#a82181208ec1e9f42896f0606e0036c1d">clear_hs_hash</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer) {</div>
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>&#160;  assert(peer);</div>
<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>&#160;  <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;clear MAC\n&quot;</span>);</div>
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>&#160;  <a class="code" href="hmac_8h.html#afe0af64930ac5d6a51289df6d1eb4f52">dtls_hash_init</a>(&amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a991b95919538531d730f74045e4fe3b1">hs_hash</a>);</div>
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>&#160;}</div>
<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>&#160;</div>
<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01104"></a><span class="lineno"><a class="line" href="dtls_8c.html#a91b2653747ca1e4058ae3b350019188b"> 1104</a></span>&#160;<a class="code" href="dtls_8c.html#a91b2653747ca1e4058ae3b350019188b">check_finished</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>&#160;           <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length) {</div>
<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>&#160;  <span class="keywordtype">size_t</span> digest_length, label_size;</div>
<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *label;</div>
<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> buf[<a class="code" href="group__HMAC.html#ga3e84ddbef6bf0084252e16e6c547e332">DTLS_HMAC_MAX</a>];</div>
<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>&#160;</div>
<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#a21644ea2de742395df1e3b3281ba4f63">DTLS_FIN_LENGTH</a>)</div>
<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>&#160;</div>
<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>&#160;  <span class="comment">/* Use a union here to ensure that sufficient stack space is</span></div>
<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>&#160;<span class="comment">   * reserved. As statebuf and verify_data are not used at the same</span></div>
<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>&#160;<span class="comment">   * time, we can re-use the storage safely.</span></div>
<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>&#160;<span class="comment">   */</span></div>
<div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>&#160;  <span class="keyword">union </span>{</div>
<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> statebuf[<a class="code" href="hmac_8h.html#a7fb242dc4ddd717e5eb67d4bf89618d5">DTLS_HASH_CTX_SIZE</a>];</div>
<div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> verify_data[<a class="code" href="dtls_8c.html#a21644ea2de742395df1e3b3281ba4f63">DTLS_FIN_LENGTH</a>];</div>
<div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>&#160;  } b;</div>
<div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>&#160;</div>
<div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>&#160;  <span class="comment">/* temporarily store hash status for roll-back after finalize */</span></div>
<div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>&#160;  memcpy(b.statebuf, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a991b95919538531d730f74045e4fe3b1">hs_hash</a>, <a class="code" href="hmac_8h.html#a7fb242dc4ddd717e5eb67d4bf89618d5">DTLS_HASH_CTX_SIZE</a>);</div>
<div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>&#160;</div>
<div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>&#160;  digest_length = <a class="code" href="dtls_8c.html#adb41bf916dc34af5cd79003a9243b727">finalize_hs_hash</a>(peer, buf);</div>
<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>&#160;  <span class="comment">/* clear_hash(); */</span></div>
<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>&#160;</div>
<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>&#160;  <span class="comment">/* restore hash status */</span></div>
<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>&#160;  memcpy(&amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a991b95919538531d730f74045e4fe3b1">hs_hash</a>, b.statebuf, <a class="code" href="hmac_8h.html#a7fb242dc4ddd717e5eb67d4bf89618d5">DTLS_HASH_CTX_SIZE</a>);</div>
<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>&#160;</div>
<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>&#160;  <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a> == <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8afd8391395303e28ee9b375232cb68a1e">DTLS_CLIENT</a>) {</div>
<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>&#160;    label = <a class="code" href="dtls_8c.html#abac8adda40bcb694e059e38f6ac115f9">PRF_LABEL</a>(server);</div>
<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>&#160;    label_size = <a class="code" href="dtls_8c.html#a83b260e812e69f1dae18497d167770a9">PRF_LABEL_SIZE</a>(server);</div>
<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>&#160;  } <span class="keywordflow">else</span> { <span class="comment">/* server */</span></div>
<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>&#160;    label = <a class="code" href="dtls_8c.html#abac8adda40bcb694e059e38f6ac115f9">PRF_LABEL</a>(client);</div>
<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>&#160;    label_size = <a class="code" href="dtls_8c.html#a83b260e812e69f1dae18497d167770a9">PRF_LABEL_SIZE</a>(client);</div>
<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>&#160;  }</div>
<div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>&#160;</div>
<div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>&#160;  <a class="code" href="crypto_8c.html#a5e47576e502b5a6255f1b489a4915512">dtls_prf</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a21ba88c7b062772beb75c5570d257898">master_secret</a>,</div>
<div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>&#160;       <a class="code" href="crypto_8h.html#a2648582ddf4c82abc01d8388bd3f15db">DTLS_MASTER_SECRET_LENGTH</a>,</div>
<div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>&#160;       label, label_size,</div>
<div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>&#160;       <a class="code" href="dtls_8c.html#abac8adda40bcb694e059e38f6ac115f9">PRF_LABEL</a>(finished), <a class="code" href="dtls_8c.html#a83b260e812e69f1dae18497d167770a9">PRF_LABEL_SIZE</a>(finished),</div>
<div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>&#160;       buf, digest_length,</div>
<div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>&#160;       b.verify_data, <span class="keyword">sizeof</span>(b.verify_data));</div>
<div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>&#160;</div>
<div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;d:&quot;</span>, data + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>, <span class="keyword">sizeof</span>(b.verify_data));</div>
<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;v:&quot;</span>, b.verify_data, <span class="keyword">sizeof</span>(b.verify_data));</div>
<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>&#160;</div>
<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>&#160;  <span class="comment">/* compare verify data and create DTLS alert code when they differ */</span></div>
<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="global_8h.html#a8277c276ecd5cd2f998f08fd344d90ef">equals</a>(data + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>, b.verify_data, <span class="keyword">sizeof</span>(b.verify_data))</div>
<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>&#160;    ? 0</div>
<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>&#160;    : <a class="code" href="alert_8h.html#a4242f419ffdd4b83bfaa2a0935ed2b6d">dtls_alert_create</a>(<a class="code" href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871fabd07bcf63c24aa5f1b9706a4197ceaf4">DTLS_ALERT_LEVEL_FATAL</a>, <a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>&#160;}</div>
<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>&#160;</div>
<div class="line"><a name="l01179"></a><span class="lineno"> 1179</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01180"></a><span class="lineno"><a class="line" href="dtls_8c.html#ab9733484b9a23775b1bc8b3d723282e5"> 1180</a></span>&#160;<a class="code" href="dtls_8c.html#ab9733484b9a23775b1bc8b3d723282e5">dtls_prepare_record</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *security,</div>
<div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> type,</div>
<div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>&#160;            <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data_array[], <span class="keywordtype">size_t</span> data_len_array[],</div>
<div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>&#160;            <span class="keywordtype">size_t</span> data_array_len,</div>
<div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>&#160;            <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *sendbuf, <span class="keywordtype">size_t</span> *rlen) {</div>
<div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p, *start;</div>
<div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>&#160;  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>&#160;  </div>
<div class="line"><a name="l01189"></a><span class="lineno"> 1189</span>&#160;  <span class="keywordflow">if</span> (*rlen &lt; <a class="code" href="dtls_8c.html#ae97c368900c13dc7074c09e8848afa8f">DTLS_RH_LENGTH</a>) {</div>
<div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;The sendbuf (%zu bytes) is too small\n&quot;</span>, *rlen);</div>
<div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>&#160;  }</div>
<div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>&#160;</div>
<div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>&#160;  p = <a class="code" href="dtls_8c.html#a734cf32b1c8b99e21d57006da24fd808">dtls_set_record_header</a>(type, security, sendbuf);</div>
<div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>&#160;  start = p;</div>
<div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>&#160;</div>
<div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>&#160;  <span class="keywordflow">if</span> (!security || security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a21d9fac709d739535b0cbecce4c18830">cipher</a> == <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd">TLS_NULL_WITH_NULL_NULL</a>) {</div>
<div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>&#160;    <span class="comment">/* no cipher suite */</span></div>
<div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>&#160;</div>
<div class="line"><a name="l01200"></a><span class="lineno"> 1200</span>&#160;    res = 0;</div>
<div class="line"><a name="l01201"></a><span class="lineno"> 1201</span>&#160;    <span class="keywordflow">for</span> (i = 0; i &lt; data_array_len; i++) {</div>
<div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>&#160;      <span class="comment">/* check the minimum that we need for packets that are not encrypted */</span></div>
<div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>&#160;      <span class="keywordflow">if</span> (*rlen &lt; res + <a class="code" href="dtls_8c.html#ae97c368900c13dc7074c09e8848afa8f">DTLS_RH_LENGTH</a> + data_len_array[i]) {</div>
<div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>&#160;        <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_prepare_record: send buffer too small\n&quot;</span>);</div>
<div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l01206"></a><span class="lineno"> 1206</span>&#160;      }</div>
<div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>&#160;</div>
<div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>&#160;      memcpy(p, data_array[i], data_len_array[i]);</div>
<div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>&#160;      p += data_len_array[i];</div>
<div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>&#160;      res += data_len_array[i];</div>
<div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>&#160;    }</div>
<div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>&#160;  } <span class="keywordflow">else</span> { <span class="comment">/* TLS_PSK_WITH_AES_128_CCM_8 or TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 */</span>   </div>
<div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>&#160;<span class="preprocessor">#define A_DATA_LEN 13</span></div>
<div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>&#160;<span class="preprocessor"></span>    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> nonce[<a class="code" href="ccm_8h.html#a5c46c97c6c3ef5d4e5bd616dbd064859">DTLS_CCM_BLOCKSIZE</a>];</div>
<div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> A_DATA[<a class="code" href="dtls_8c.html#aee0f4f3d8541ea6ab9c204761cc6082e">A_DATA_LEN</a>];</div>
<div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>&#160;</div>
<div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8bb6e8bb947b943d2af4c1886a8e72ba">is_tls_psk_with_aes_128_ccm_8</a>(security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a21d9fac709d739535b0cbecce4c18830">cipher</a>)) {</div>
<div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_prepare_record(): encrypt using TLS_PSK_WITH_AES_128_CCM_8\n&quot;</span>);</div>
<div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>&#160;    } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a21d9fac709d739535b0cbecce4c18830">cipher</a>)) {</div>
<div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_prepare_record(): encrypt using TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8\n&quot;</span>);</div>
<div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_prepare_record(): encrypt using unknown cipher\n&quot;</span>);</div>
<div class="line"><a name="l01227"></a><span class="lineno"> 1227</span>&#160;    }</div>
<div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>&#160;</div>
<div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>&#160;    <span class="comment">/* set nonce       </span></div>
<div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>&#160;<span class="comment">       from RFC 6655:</span></div>
<div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>&#160;<span class="comment">    The &quot;nonce&quot; input to the AEAD algorithm is exactly that of [RFC5288]:</span></div>
<div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>&#160;<span class="comment">    the &quot;nonce&quot; SHALL be 12 bytes long and is constructed as follows:</span></div>
<div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>&#160;<span class="comment">    (this is an example of a &quot;partially explicit&quot; nonce; see Section</span></div>
<div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>&#160;<span class="comment">    3.2.1 in [RFC5116]).</span></div>
<div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>&#160;<span class="comment">                       struct {</span></div>
<div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>&#160;<span class="comment">             opaque salt[4];</span></div>
<div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>&#160;<span class="comment">             opaque nonce_explicit[8];</span></div>
<div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>&#160;<span class="comment">                       } CCMNonce;</span></div>
<div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>&#160;<span class="comment">         [...]</span></div>
<div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l01243"></a><span class="lineno"> 1243</span>&#160;<span class="comment">     In DTLS, the 64-bit seq_num is the 16-bit epoch concatenated with the</span></div>
<div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>&#160;<span class="comment">     48-bit seq_num.</span></div>
<div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>&#160;<span class="comment">     When the nonce_explicit is equal to the sequence number, the CCMNonce</span></div>
<div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>&#160;<span class="comment">     will have the structure of the CCMNonceExample given below.</span></div>
<div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>&#160;<span class="comment">                struct {</span></div>
<div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>&#160;<span class="comment">                 uint32 client_write_IV; // low order 32-bits</span></div>
<div class="line"><a name="l01251"></a><span class="lineno"> 1251</span>&#160;<span class="comment">                 uint64 seq_num;         // TLS sequence number</span></div>
<div class="line"><a name="l01252"></a><span class="lineno"> 1252</span>&#160;<span class="comment">                } CCMClientNonce.</span></div>
<div class="line"><a name="l01253"></a><span class="lineno"> 1253</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l01255"></a><span class="lineno"> 1255</span>&#160;<span class="comment">                struct {</span></div>
<div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>&#160;<span class="comment">                 uint32 server_write_IV; // low order 32-bits</span></div>
<div class="line"><a name="l01257"></a><span class="lineno"> 1257</span>&#160;<span class="comment">                 uint64 seq_num; // TLS sequence number</span></div>
<div class="line"><a name="l01258"></a><span class="lineno"> 1258</span>&#160;<span class="comment">                } CCMServerNonce.</span></div>
<div class="line"><a name="l01259"></a><span class="lineno"> 1259</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l01260"></a><span class="lineno"> 1260</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>&#160;<span class="comment">                struct {</span></div>
<div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>&#160;<span class="comment">                 case client:</span></div>
<div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>&#160;<span class="comment">                   CCMClientNonce;</span></div>
<div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>&#160;<span class="comment">                 case server:</span></div>
<div class="line"><a name="l01265"></a><span class="lineno"> 1265</span>&#160;<span class="comment">                   CCMServerNonce:</span></div>
<div class="line"><a name="l01266"></a><span class="lineno"> 1266</span>&#160;<span class="comment">                } CCMNonceExample;</span></div>
<div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>&#160;<span class="comment">    */</span></div>
<div class="line"><a name="l01268"></a><span class="lineno"> 1268</span>&#160;</div>
<div class="line"><a name="l01269"></a><span class="lineno"> 1269</span>&#160;    memcpy(p, &amp;<a class="code" href="dtls_8c.html#a35d050593196252c1826ac2e82cbac0b">DTLS_RECORD_HEADER</a>(sendbuf)-&gt;epoch, 8);</div>
<div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>&#160;    p += 8;</div>
<div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>&#160;    res = 8;</div>
<div class="line"><a name="l01272"></a><span class="lineno"> 1272</span>&#160;</div>
<div class="line"><a name="l01273"></a><span class="lineno"> 1273</span>&#160;    <span class="keywordflow">for</span> (i = 0; i &lt; data_array_len; i++) {</div>
<div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>&#160;      <span class="comment">/* check the minimum that we need for packets that are not encrypted */</span></div>
<div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>&#160;      <span class="keywordflow">if</span> (*rlen &lt; res + <a class="code" href="dtls_8c.html#ae97c368900c13dc7074c09e8848afa8f">DTLS_RH_LENGTH</a> + data_len_array[i]) {</div>
<div class="line"><a name="l01276"></a><span class="lineno"> 1276</span>&#160;        <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_prepare_record: send buffer too small\n&quot;</span>);</div>
<div class="line"><a name="l01277"></a><span class="lineno"> 1277</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l01278"></a><span class="lineno"> 1278</span>&#160;      }</div>
<div class="line"><a name="l01279"></a><span class="lineno"> 1279</span>&#160;</div>
<div class="line"><a name="l01280"></a><span class="lineno"> 1280</span>&#160;      memcpy(p, data_array[i], data_len_array[i]);</div>
<div class="line"><a name="l01281"></a><span class="lineno"> 1281</span>&#160;      p += data_len_array[i];</div>
<div class="line"><a name="l01282"></a><span class="lineno"> 1282</span>&#160;      res += data_len_array[i];</div>
<div class="line"><a name="l01283"></a><span class="lineno"> 1283</span>&#160;    }</div>
<div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>&#160;</div>
<div class="line"><a name="l01285"></a><span class="lineno"> 1285</span>&#160;    memset(nonce, 0, <a class="code" href="ccm_8h.html#a5c46c97c6c3ef5d4e5bd616dbd064859">DTLS_CCM_BLOCKSIZE</a>);</div>
<div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>&#160;    memcpy(nonce, <a class="code" href="crypto_8h.html#ae23208578ac21350cb5915d11da0a2e3">dtls_kb_local_iv</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>),</div>
<div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>&#160;       <a class="code" href="crypto_8h.html#adcdadf1870e2acb2993b1a8726d26997">dtls_kb_iv_size</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>));</div>
<div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>&#160;    memcpy(nonce + <a class="code" href="crypto_8h.html#adcdadf1870e2acb2993b1a8726d26997">dtls_kb_iv_size</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>), start, 8); <span class="comment">/* epoch + seq_num */</span></div>
<div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>&#160;</div>
<div class="line"><a name="l01290"></a><span class="lineno"> 1290</span>&#160;    <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;nonce:&quot;</span>, nonce, <a class="code" href="ccm_8h.html#a5c46c97c6c3ef5d4e5bd616dbd064859">DTLS_CCM_BLOCKSIZE</a>);</div>
<div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>&#160;    <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;key:&quot;</span>, <a class="code" href="crypto_8h.html#a7c9e39188a2e50eb942ce8c7cd8add36">dtls_kb_local_write_key</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>),</div>
<div class="line"><a name="l01292"></a><span class="lineno"> 1292</span>&#160;            <a class="code" href="crypto_8h.html#a726ef8efa2e072c3c5e1ea1019e716aa">dtls_kb_key_size</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>));</div>
<div class="line"><a name="l01293"></a><span class="lineno"> 1293</span>&#160;    </div>
<div class="line"><a name="l01294"></a><span class="lineno"> 1294</span>&#160;    <span class="comment">/* re-use N to create additional data according to RFC 5246, Section 6.2.3.3:</span></div>
<div class="line"><a name="l01295"></a><span class="lineno"> 1295</span>&#160;<span class="comment">     * </span></div>
<div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>&#160;<span class="comment">     * additional_data = seq_num + TLSCompressed.type +</span></div>
<div class="line"><a name="l01297"></a><span class="lineno"> 1297</span>&#160;<span class="comment">     *                   TLSCompressed.version + TLSCompressed.length;</span></div>
<div class="line"><a name="l01298"></a><span class="lineno"> 1298</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l01299"></a><span class="lineno"> 1299</span>&#160;    memcpy(A_DATA, &amp;<a class="code" href="dtls_8c.html#a35d050593196252c1826ac2e82cbac0b">DTLS_RECORD_HEADER</a>(sendbuf)-&gt;epoch, 8); <span class="comment">/* epoch and seq_num */</span></div>
<div class="line"><a name="l01300"></a><span class="lineno"> 1300</span>&#160;    memcpy(A_DATA + 8,  &amp;<a class="code" href="dtls_8c.html#a35d050593196252c1826ac2e82cbac0b">DTLS_RECORD_HEADER</a>(sendbuf)-&gt;content_type, 3); <span class="comment">/* type and version */</span></div>
<div class="line"><a name="l01301"></a><span class="lineno"> 1301</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(A_DATA + 11, res - 8); <span class="comment">/* length */</span></div>
<div class="line"><a name="l01302"></a><span class="lineno"> 1302</span>&#160;    </div>
<div class="line"><a name="l01303"></a><span class="lineno"> 1303</span>&#160;    res = <a class="code" href="crypto_8c.html#ad58098f0e821f81b4f1a6672ead17ac5">dtls_encrypt</a>(start + 8, res - 8, start + 8, nonce,</div>
<div class="line"><a name="l01304"></a><span class="lineno"> 1304</span>&#160;               <a class="code" href="crypto_8h.html#a7c9e39188a2e50eb942ce8c7cd8add36">dtls_kb_local_write_key</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>),</div>
<div class="line"><a name="l01305"></a><span class="lineno"> 1305</span>&#160;               <a class="code" href="crypto_8h.html#a726ef8efa2e072c3c5e1ea1019e716aa">dtls_kb_key_size</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>),</div>
<div class="line"><a name="l01306"></a><span class="lineno"> 1306</span>&#160;               A_DATA, <a class="code" href="dtls_8c.html#aee0f4f3d8541ea6ab9c204761cc6082e">A_DATA_LEN</a>);</div>
<div class="line"><a name="l01307"></a><span class="lineno"> 1307</span>&#160;</div>
<div class="line"><a name="l01308"></a><span class="lineno"> 1308</span>&#160;    <span class="keywordflow">if</span> (res &lt; 0)</div>
<div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>&#160;      <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l01310"></a><span class="lineno"> 1310</span>&#160;</div>
<div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>&#160;    res += 8;           <span class="comment">/* increment res by size of nonce_explicit */</span></div>
<div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>&#160;    <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;message:&quot;</span>, start, res);</div>
<div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>&#160;  }</div>
<div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>&#160;</div>
<div class="line"><a name="l01315"></a><span class="lineno"> 1315</span>&#160;  <span class="comment">/* fix length of fragment in sendbuf */</span></div>
<div class="line"><a name="l01316"></a><span class="lineno"> 1316</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(sendbuf + 11, res);</div>
<div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>&#160;  </div>
<div class="line"><a name="l01318"></a><span class="lineno"> 1318</span>&#160;  *rlen = <a class="code" href="dtls_8c.html#ae97c368900c13dc7074c09e8848afa8f">DTLS_RH_LENGTH</a> + res;</div>
<div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l01320"></a><span class="lineno"> 1320</span>&#160;}</div>
<div class="line"><a name="l01321"></a><span class="lineno"> 1321</span>&#160;</div>
<div class="line"><a name="l01322"></a><span class="lineno"> 1322</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01323"></a><span class="lineno"><a class="line" href="dtls_8c.html#a4f06884f659f6a5120be7e0b86d29880"> 1323</a></span>&#160;<a class="code" href="dtls_8c.html#a4f06884f659f6a5120be7e0b86d29880">dtls_send_handshake_msg_hash</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx,</div>
<div class="line"><a name="l01324"></a><span class="lineno"> 1324</span>&#160;                 <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l01325"></a><span class="lineno"> 1325</span>&#160;                 <a class="code" href="structsession__t.html">session_t</a> *session,</div>
<div class="line"><a name="l01326"></a><span class="lineno"> 1326</span>&#160;                 <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> header_type,</div>
<div class="line"><a name="l01327"></a><span class="lineno"> 1327</span>&#160;                 <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length,</div>
<div class="line"><a name="l01328"></a><span class="lineno"> 1328</span>&#160;                 <span class="keywordtype">int</span> add_hash)</div>
<div class="line"><a name="l01329"></a><span class="lineno"> 1329</span>&#160;{</div>
<div class="line"><a name="l01330"></a><span class="lineno"> 1330</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[<a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>];</div>
<div class="line"><a name="l01331"></a><span class="lineno"> 1331</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data_array[2];</div>
<div class="line"><a name="l01332"></a><span class="lineno"> 1332</span>&#160;  <span class="keywordtype">size_t</span> data_len_array[2];</div>
<div class="line"><a name="l01333"></a><span class="lineno"> 1333</span>&#160;  <span class="keywordtype">int</span> i = 0;</div>
<div class="line"><a name="l01334"></a><span class="lineno"> 1334</span>&#160;  <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *security = peer ? <a class="code" href="peer_8h.html#a48abcad7383e1db957af9b4fed030d52">dtls_security_params</a>(peer) : NULL;</div>
<div class="line"><a name="l01335"></a><span class="lineno"> 1335</span>&#160;</div>
<div class="line"><a name="l01336"></a><span class="lineno"> 1336</span>&#160;  <a class="code" href="dtls_8c.html#ab43d3a34ddaf0f5bfaa2b0b3e76e25d1">dtls_set_handshake_header</a>(header_type, peer, data_length, 0,</div>
<div class="line"><a name="l01337"></a><span class="lineno"> 1337</span>&#160;                data_length, buf);</div>
<div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>&#160;</div>
<div class="line"><a name="l01339"></a><span class="lineno"> 1339</span>&#160;  <span class="keywordflow">if</span> (add_hash) {</div>
<div class="line"><a name="l01340"></a><span class="lineno"> 1340</span>&#160;    <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, buf, <span class="keyword">sizeof</span>(buf));</div>
<div class="line"><a name="l01341"></a><span class="lineno"> 1341</span>&#160;  }</div>
<div class="line"><a name="l01342"></a><span class="lineno"> 1342</span>&#160;  data_array[i] = buf;</div>
<div class="line"><a name="l01343"></a><span class="lineno"> 1343</span>&#160;  data_len_array[i] = <span class="keyword">sizeof</span>(buf);</div>
<div class="line"><a name="l01344"></a><span class="lineno"> 1344</span>&#160;  i++;</div>
<div class="line"><a name="l01345"></a><span class="lineno"> 1345</span>&#160;</div>
<div class="line"><a name="l01346"></a><span class="lineno"> 1346</span>&#160;  <span class="keywordflow">if</span> (data != NULL) {</div>
<div class="line"><a name="l01347"></a><span class="lineno"> 1347</span>&#160;    <span class="keywordflow">if</span> (add_hash) {</div>
<div class="line"><a name="l01348"></a><span class="lineno"> 1348</span>&#160;      <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l01349"></a><span class="lineno"> 1349</span>&#160;    }</div>
<div class="line"><a name="l01350"></a><span class="lineno"> 1350</span>&#160;    data_array[i] = data;</div>
<div class="line"><a name="l01351"></a><span class="lineno"> 1351</span>&#160;    data_len_array[i] = data_length;</div>
<div class="line"><a name="l01352"></a><span class="lineno"> 1352</span>&#160;    i++;</div>
<div class="line"><a name="l01353"></a><span class="lineno"> 1353</span>&#160;  }</div>
<div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>&#160;  <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;send handshake packet of type: %s (%i)\n&quot;</span>,</div>
<div class="line"><a name="l01355"></a><span class="lineno"> 1355</span>&#160;         <a class="code" href="dtls_8c.html#a00707f0f82235a2432338e77dae0911d">dtls_handshake_type_to_name</a>(header_type), header_type);</div>
<div class="line"><a name="l01356"></a><span class="lineno"> 1356</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#aa89745c0af073102c9c350d28a84214d">dtls_send_multi</a>(ctx, peer, security, session, <a class="code" href="dtls_8h.html#a76965db5ec449b3c8a9a54c24a4d45dc">DTLS_CT_HANDSHAKE</a>,</div>
<div class="line"><a name="l01357"></a><span class="lineno"> 1357</span>&#160;             data_array, data_len_array, i);</div>
<div class="line"><a name="l01358"></a><span class="lineno"> 1358</span>&#160;}</div>
<div class="line"><a name="l01359"></a><span class="lineno"> 1359</span>&#160;</div>
<div class="line"><a name="l01360"></a><span class="lineno"> 1360</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01361"></a><span class="lineno"><a class="line" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b"> 1361</a></span>&#160;<a class="code" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx,</div>
<div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>&#160;            <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l01363"></a><span class="lineno"> 1363</span>&#160;            <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> header_type,</div>
<div class="line"><a name="l01364"></a><span class="lineno"> 1364</span>&#160;            <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l01365"></a><span class="lineno"> 1365</span>&#160;{</div>
<div class="line"><a name="l01366"></a><span class="lineno"> 1366</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a4f06884f659f6a5120be7e0b86d29880">dtls_send_handshake_msg_hash</a>(ctx, peer, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>,</div>
<div class="line"><a name="l01367"></a><span class="lineno"> 1367</span>&#160;                      header_type, data, data_length, 1);</div>
<div class="line"><a name="l01368"></a><span class="lineno"> 1368</span>&#160;}</div>
<div class="line"><a name="l01369"></a><span class="lineno"> 1369</span>&#160;</div>
<div class="line"><a name="l01384"></a><span class="lineno"><a class="line" href="dtls_8c.html#a9279d8f0e7c7b30f968ed085b5a3136f"> 1384</a></span>&#160;<span class="preprocessor">#define MUST_HASH(Type, Data, Length)                   \</span></div>
<div class="line"><a name="l01385"></a><span class="lineno"> 1385</span>&#160;<span class="preprocessor">  ((Type) == DTLS_CT_HANDSHAKE &amp;&amp;                   \</span></div>
<div class="line"><a name="l01386"></a><span class="lineno"> 1386</span>&#160;<span class="preprocessor">   ((Data) != NULL) &amp;&amp; ((Length) &gt; 0)  &amp;&amp;               \</span></div>
<div class="line"><a name="l01387"></a><span class="lineno"> 1387</span>&#160;<span class="preprocessor">   ((Data)[0] != DTLS_HT_HELLO_VERIFY_REQUEST) &amp;&amp;           \</span></div>
<div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>&#160;<span class="preprocessor">   ((Data)[0] != DTLS_HT_CLIENT_HELLO ||                \</span></div>
<div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>&#160;<span class="preprocessor">    ((Length) &gt;= HS_HDR_LENGTH &amp;&amp;                   \</span></div>
<div class="line"><a name="l01390"></a><span class="lineno"> 1390</span>&#160;<span class="preprocessor">     (dtls_uint16_to_int(DTLS_RECORD_HEADER(Data)-&gt;epoch &gt; 0) ||    \</span></div>
<div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>&#160;<span class="preprocessor">      (dtls_uint16_to_int(HANDSHAKE(Data)-&gt;message_seq) &gt; 0)))))</span></div>
<div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l01406"></a><span class="lineno"> 1406</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01407"></a><span class="lineno"><a class="line" href="dtls_8c.html#aa89745c0af073102c9c350d28a84214d"> 1407</a></span>&#160;<a class="code" href="dtls_8c.html#aa89745c0af073102c9c350d28a84214d">dtls_send_multi</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l01408"></a><span class="lineno"> 1408</span>&#160;        <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *security , <a class="code" href="structsession__t.html">session_t</a> *session,</div>
<div class="line"><a name="l01409"></a><span class="lineno"> 1409</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> type, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *buf_array[],</div>
<div class="line"><a name="l01410"></a><span class="lineno"> 1410</span>&#160;        <span class="keywordtype">size_t</span> buf_len_array[], <span class="keywordtype">size_t</span> buf_array_len)</div>
<div class="line"><a name="l01411"></a><span class="lineno"> 1411</span>&#160;{</div>
<div class="line"><a name="l01412"></a><span class="lineno"> 1412</span>&#160;  <span class="comment">/* We cannot use ctx-&gt;sendbuf here as it is reserved for collecting</span></div>
<div class="line"><a name="l01413"></a><span class="lineno"> 1413</span>&#160;<span class="comment">   * the input for this function, i.e. buf == ctx-&gt;sendbuf.</span></div>
<div class="line"><a name="l01414"></a><span class="lineno"> 1414</span>&#160;<span class="comment">   *</span></div>
<div class="line"><a name="l01415"></a><span class="lineno"> 1415</span>&#160;<span class="comment">   * TODO: check if we can use the receive buf here. This would mean</span></div>
<div class="line"><a name="l01416"></a><span class="lineno"> 1416</span>&#160;<span class="comment">   * that we might not be able to handle multiple records stuffed in</span></div>
<div class="line"><a name="l01417"></a><span class="lineno"> 1417</span>&#160;<span class="comment">   * one UDP datagram */</span></div>
<div class="line"><a name="l01418"></a><span class="lineno"> 1418</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> sendbuf[<a class="code" href="global_8h.html#acdbfba15eb1a5692e177d582b4ca1583">DTLS_MAX_BUF</a>];</div>
<div class="line"><a name="l01419"></a><span class="lineno"> 1419</span>&#160;  <span class="keywordtype">size_t</span> len = <span class="keyword">sizeof</span>(sendbuf);</div>
<div class="line"><a name="l01420"></a><span class="lineno"> 1420</span>&#160;  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l01421"></a><span class="lineno"> 1421</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l01422"></a><span class="lineno"> 1422</span>&#160;  <span class="keywordtype">size_t</span> overall_len = 0;</div>
<div class="line"><a name="l01423"></a><span class="lineno"> 1423</span>&#160;</div>
<div class="line"><a name="l01424"></a><span class="lineno"> 1424</span>&#160;  res = <a class="code" href="dtls_8c.html#ab9733484b9a23775b1bc8b3d723282e5">dtls_prepare_record</a>(peer, security, type, buf_array, buf_len_array, buf_array_len, sendbuf, &amp;len);</div>
<div class="line"><a name="l01425"></a><span class="lineno"> 1425</span>&#160;</div>
<div class="line"><a name="l01426"></a><span class="lineno"> 1426</span>&#160;  <span class="keywordflow">if</span> (res &lt; 0)</div>
<div class="line"><a name="l01427"></a><span class="lineno"> 1427</span>&#160;    <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l01428"></a><span class="lineno"> 1428</span>&#160;</div>
<div class="line"><a name="l01429"></a><span class="lineno"> 1429</span>&#160;  <span class="comment">/* if (peer &amp;&amp; MUST_HASH(peer, type, buf, buflen)) */</span></div>
<div class="line"><a name="l01430"></a><span class="lineno"> 1430</span>&#160;  <span class="comment">/*   update_hs_hash(peer, buf, buflen); */</span></div>
<div class="line"><a name="l01431"></a><span class="lineno"> 1431</span>&#160;</div>
<div class="line"><a name="l01432"></a><span class="lineno"> 1432</span>&#160;  <a class="code" href="debug_8h.html#a24b1e8ecaa65f684d879ed9d5c37119d">dtls_debug_hexdump</a>(<span class="stringliteral">&quot;send header&quot;</span>, sendbuf, <span class="keyword">sizeof</span>(<a class="code" href="dtls_8h.html#a81936df7abb2c16aa897e3018aa24399">dtls_record_header_t</a>));</div>
<div class="line"><a name="l01433"></a><span class="lineno"> 1433</span>&#160;  <span class="keywordflow">for</span> (i = 0; i &lt; buf_array_len; i++) {</div>
<div class="line"><a name="l01434"></a><span class="lineno"> 1434</span>&#160;    <a class="code" href="debug_8h.html#a24b1e8ecaa65f684d879ed9d5c37119d">dtls_debug_hexdump</a>(<span class="stringliteral">&quot;send unencrypted&quot;</span>, buf_array[i], buf_len_array[i]);</div>
<div class="line"><a name="l01435"></a><span class="lineno"> 1435</span>&#160;    overall_len += buf_len_array[i];</div>
<div class="line"><a name="l01436"></a><span class="lineno"> 1436</span>&#160;  }</div>
<div class="line"><a name="l01437"></a><span class="lineno"> 1437</span>&#160;</div>
<div class="line"><a name="l01438"></a><span class="lineno"> 1438</span>&#160;  <span class="keywordflow">if</span> ((type == <a class="code" href="dtls_8h.html#a76965db5ec449b3c8a9a54c24a4d45dc">DTLS_CT_HANDSHAKE</a> &amp;&amp; buf_array[0][0] != <a class="code" href="dtls_8h.html#ab04f98f1863c785fabd97925c9746f7d">DTLS_HT_HELLO_VERIFY_REQUEST</a>) ||</div>
<div class="line"><a name="l01439"></a><span class="lineno"> 1439</span>&#160;      type == <a class="code" href="dtls_8h.html#a3114c327a12e3850e97c4cf8a0cc5c9d">DTLS_CT_CHANGE_CIPHER_SPEC</a>) {</div>
<div class="line"><a name="l01440"></a><span class="lineno"> 1440</span>&#160;    <span class="comment">/* copy handshake messages other than HelloVerify into retransmit buffer */</span></div>
<div class="line"><a name="l01441"></a><span class="lineno"> 1441</span>&#160;    <a class="code" href="structnetq__t.html">netq_t</a> *n = <a class="code" href="group__netq.html#gafcf245cd934e9b8f0909a7ca8940e9cb">netq_node_new</a>(overall_len);</div>
<div class="line"><a name="l01442"></a><span class="lineno"> 1442</span>&#160;    <span class="keywordflow">if</span> (n) {</div>
<div class="line"><a name="l01443"></a><span class="lineno"> 1443</span>&#160;      <a class="code" href="group__clock.html#gaded617551180951f4841969e396a8012">dtls_tick_t</a> now;</div>
<div class="line"><a name="l01444"></a><span class="lineno"> 1444</span>&#160;      <a class="code" href="group__clock.html#ga1834985745ba5d3dd03f7e7498e3a304">dtls_ticks</a>(&amp;now);</div>
<div class="line"><a name="l01445"></a><span class="lineno"> 1445</span>&#160;      n-&gt;<a class="code" href="structnetq__t.html#afe91256ff5267fc680b96efd3bd8635a">t</a> = now + 2 * <a class="code" href="group__clock.html#gae3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a>;</div>
<div class="line"><a name="l01446"></a><span class="lineno"> 1446</span>&#160;      n-&gt;<a class="code" href="structnetq__t.html#aacd03017f40248c2f48c2b7b9cd92dc8">retransmit_cnt</a> = 0;</div>
<div class="line"><a name="l01447"></a><span class="lineno"> 1447</span>&#160;      n-&gt;<a class="code" href="structnetq__t.html#ae0c2648acf87d1e6f2566bc3600771b6">timeout</a> = 2 * <a class="code" href="group__clock.html#gae3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a>;</div>
<div class="line"><a name="l01448"></a><span class="lineno"> 1448</span>&#160;      n-&gt;<a class="code" href="structnetq__t.html#aaca5f6407bd7b3162d9ee7e7e7b8f0ff">peer</a> = peer;</div>
<div class="line"><a name="l01449"></a><span class="lineno"> 1449</span>&#160;      n-&gt;<a class="code" href="structnetq__t.html#a9998944e43a39a2e5700156876a312e0">epoch</a> = (security) ? security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">epoch</a> : 0;</div>
<div class="line"><a name="l01450"></a><span class="lineno"> 1450</span>&#160;      n-&gt;<a class="code" href="structnetq__t.html#a13d74bc65c8879b894698935fbbe2246">type</a> = type;</div>
<div class="line"><a name="l01451"></a><span class="lineno"> 1451</span>&#160;      n-&gt;<a class="code" href="structnetq__t.html#ac72c9378282becab5a273f612f58c124">length</a> = 0;</div>
<div class="line"><a name="l01452"></a><span class="lineno"> 1452</span>&#160;      for (i = 0; i &lt; buf_array_len; i++) {</div>
<div class="line"><a name="l01453"></a><span class="lineno"> 1453</span>&#160;        memcpy(n-&gt;<a class="code" href="structnetq__t.html#a5b4d387623df43fe25a3b11e9d4fb02c">data</a> + n-&gt;<a class="code" href="structnetq__t.html#ac72c9378282becab5a273f612f58c124">length</a>, buf_array[i], buf_len_array[i]);</div>
<div class="line"><a name="l01454"></a><span class="lineno"> 1454</span>&#160;        n-&gt;<a class="code" href="structnetq__t.html#ac72c9378282becab5a273f612f58c124">length</a> += buf_len_array[i];</div>
<div class="line"><a name="l01455"></a><span class="lineno"> 1455</span>&#160;      }</div>
<div class="line"><a name="l01456"></a><span class="lineno"> 1456</span>&#160;</div>
<div class="line"><a name="l01457"></a><span class="lineno"> 1457</span>&#160;      <span class="keywordflow">if</span> (!<a class="code" href="group__netq.html#ga142c8e39fe2cd55250e3c1f0370dfe6b">netq_insert_node</a>(ctx-&gt;sendqueue, n)) {</div>
<div class="line"><a name="l01458"></a><span class="lineno"> 1458</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;cannot add packet to retransmit buffer\n&quot;</span>);</div>
<div class="line"><a name="l01459"></a><span class="lineno"> 1459</span>&#160;    <a class="code" href="group__netq.html#ga9ef9da1a2af266dadef83ddf6c8524d7">netq_node_free</a>(n);</div>
<div class="line"><a name="l01460"></a><span class="lineno"> 1460</span>&#160;<span class="preprocessor">#ifdef WITH_CONTIKI</span></div>
<div class="line"><a name="l01461"></a><span class="lineno"> 1461</span>&#160;<span class="preprocessor"></span>      } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01462"></a><span class="lineno"> 1462</span>&#160;    <span class="comment">/* must set timer within the context of the retransmit process */</span></div>
<div class="line"><a name="l01463"></a><span class="lineno"> 1463</span>&#160;    PROCESS_CONTEXT_BEGIN(&amp;dtls_retransmit_process);</div>
<div class="line"><a name="l01464"></a><span class="lineno"> 1464</span>&#160;    etimer_set(&amp;ctx-&gt;retransmit_timer, n-&gt;<a class="code" href="structnetq__t.html#ae0c2648acf87d1e6f2566bc3600771b6">timeout</a>);</div>
<div class="line"><a name="l01465"></a><span class="lineno"> 1465</span>&#160;    PROCESS_CONTEXT_END(&amp;dtls_retransmit_process);</div>
<div class="line"><a name="l01466"></a><span class="lineno"> 1466</span>&#160;<span class="preprocessor">#else </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01467"></a><span class="lineno"> 1467</span>&#160;<span class="preprocessor"></span>    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;copied to sendqueue\n&quot;</span>);</div>
<div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01469"></a><span class="lineno"> 1469</span>&#160;<span class="preprocessor"></span>      }</div>
<div class="line"><a name="l01470"></a><span class="lineno"> 1470</span>&#160;    } <span class="keywordflow">else</span> </div>
<div class="line"><a name="l01471"></a><span class="lineno"> 1471</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;retransmit buffer full\n&quot;</span>);</div>
<div class="line"><a name="l01472"></a><span class="lineno"> 1472</span>&#160;  }</div>
<div class="line"><a name="l01473"></a><span class="lineno"> 1473</span>&#160;</div>
<div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>&#160;  <span class="comment">/* FIXME: copy to peer&#39;s sendqueue (after fragmentation if</span></div>
<div class="line"><a name="l01475"></a><span class="lineno"> 1475</span>&#160;<span class="comment">   * necessary) and initialize retransmit timer */</span></div>
<div class="line"><a name="l01476"></a><span class="lineno"> 1476</span>&#160;  res = <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, write, session, sendbuf, len);</div>
<div class="line"><a name="l01477"></a><span class="lineno"> 1477</span>&#160;</div>
<div class="line"><a name="l01478"></a><span class="lineno"> 1478</span>&#160;  <span class="comment">/* Guess number of bytes application data actually sent:</span></div>
<div class="line"><a name="l01479"></a><span class="lineno"> 1479</span>&#160;<span class="comment">   * dtls_prepare_record() tells us in len the number of bytes to</span></div>
<div class="line"><a name="l01480"></a><span class="lineno"> 1480</span>&#160;<span class="comment">   * send, res will contain the bytes actually sent. */</span></div>
<div class="line"><a name="l01481"></a><span class="lineno"> 1481</span>&#160;  <span class="keywordflow">return</span> res &lt;= 0 ? res : overall_len - (len - res);</div>
<div class="line"><a name="l01482"></a><span class="lineno"> 1482</span>&#160;}</div>
<div class="line"><a name="l01483"></a><span class="lineno"> 1483</span>&#160;</div>
<div class="line"><a name="l01484"></a><span class="lineno"> 1484</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01485"></a><span class="lineno"><a class="line" href="dtls_8c.html#a4aac4fa55afe2d19342136acaaaf9641"> 1485</a></span>&#160;<a class="code" href="dtls_8c.html#a4aac4fa55afe2d19342136acaaaf9641">dtls_send_alert</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, <a class="code" href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871f">dtls_alert_level_t</a> level,</div>
<div class="line"><a name="l01486"></a><span class="lineno"> 1486</span>&#160;        <a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbd">dtls_alert_t</a> description) {</div>
<div class="line"><a name="l01487"></a><span class="lineno"> 1487</span>&#160;  uint8_t msg[] = { level, description };</div>
<div class="line"><a name="l01488"></a><span class="lineno"> 1488</span>&#160;</div>
<div class="line"><a name="l01489"></a><span class="lineno"> 1489</span>&#160;  <a class="code" href="dtls_8c.html#afdd0d094bfd136f65455e23fda087cd6">dtls_send</a>(ctx, peer, <a class="code" href="dtls_8h.html#af8ce2230240b6d3c36b216ef459baff1">DTLS_CT_ALERT</a>, msg, <span class="keyword">sizeof</span>(msg));</div>
<div class="line"><a name="l01490"></a><span class="lineno"> 1490</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l01491"></a><span class="lineno"> 1491</span>&#160;}</div>
<div class="line"><a name="l01492"></a><span class="lineno"> 1492</span>&#160;</div>
<div class="line"><a name="l01493"></a><span class="lineno"> 1493</span>&#160;<span class="keywordtype">int</span> </div>
<div class="line"><a name="l01494"></a><span class="lineno"><a class="line" href="dtls_8h.html#aa90f5eb6954137d5e098e29143c2586a"> 1494</a></span>&#160;<a class="code" href="dtls_8c.html#aa90f5eb6954137d5e098e29143c2586a">dtls_close</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <span class="keyword">const</span> <a class="code" href="structsession__t.html">session_t</a> *remote) {</div>
<div class="line"><a name="l01495"></a><span class="lineno"> 1495</span>&#160;  <span class="keywordtype">int</span> res = -1;</div>
<div class="line"><a name="l01496"></a><span class="lineno"> 1496</span>&#160;  <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer;</div>
<div class="line"><a name="l01497"></a><span class="lineno"> 1497</span>&#160;</div>
<div class="line"><a name="l01498"></a><span class="lineno"> 1498</span>&#160;  peer = <a class="code" href="dtls_8c.html#a70333bea2db35153177347b5c7700cab">dtls_get_peer</a>(ctx, remote);</div>
<div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>&#160;</div>
<div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>&#160;  <span class="keywordflow">if</span> (peer) {</div>
<div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>&#160;    res = <a class="code" href="dtls_8c.html#a4aac4fa55afe2d19342136acaaaf9641">dtls_send_alert</a>(ctx, peer, <a class="code" href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871fabd07bcf63c24aa5f1b9706a4197ceaf4">DTLS_ALERT_LEVEL_FATAL</a>, <a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda6bbae4f2f3747af4cdbe80c4a1061800">DTLS_ALERT_CLOSE_NOTIFY</a>);</div>
<div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>&#160;    <span class="comment">/* indicate tear down */</span></div>
<div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>&#160;    peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a4aa3fcce37191fc2a915aa330efd381b">DTLS_STATE_CLOSING</a>;</div>
<div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>&#160;  }</div>
<div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>&#160;  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>&#160;}</div>
<div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>&#160;</div>
<div class="line"><a name="l01508"></a><span class="lineno"><a class="line" href="dtls_8c.html#a81061928e291b6a3e7701f6a7f51b6f3"> 1508</a></span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="dtls_8c.html#a81061928e291b6a3e7701f6a7f51b6f3">dtls_destroy_peer</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, <span class="keywordtype">int</span> unlink)</div>
<div class="line"><a name="l01509"></a><span class="lineno"> 1509</span>&#160;{</div>
<div class="line"><a name="l01510"></a><span class="lineno"> 1510</span>&#160;  <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a88bc0f5ff63003f57a59700dc4b55553">DTLS_STATE_CLOSED</a> &amp;&amp; peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a4aa3fcce37191fc2a915aa330efd381b">DTLS_STATE_CLOSING</a>)</div>
<div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>&#160;    <a class="code" href="dtls_8c.html#aa90f5eb6954137d5e098e29143c2586a">dtls_close</a>(ctx, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>);</div>
<div class="line"><a name="l01512"></a><span class="lineno"> 1512</span>&#160;  <span class="keywordflow">if</span> (unlink) {</div>
<div class="line"><a name="l01513"></a><span class="lineno"> 1513</span>&#160;<span class="preprocessor">#ifndef WITH_CONTIKI</span></div>
<div class="line"><a name="l01514"></a><span class="lineno"> 1514</span>&#160;<span class="preprocessor"></span>    <a class="code" href="dtls_8c.html#a0844494b0b76acb7bcf832ae74fb25c0">HASH_DEL_PEER</a>(ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>, peer);</div>
<div class="line"><a name="l01515"></a><span class="lineno"> 1515</span>&#160;<span class="preprocessor">#else </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01516"></a><span class="lineno"> 1516</span>&#160;<span class="preprocessor"></span>    <a class="code" href="t__list_8h.html#a10de2120be61f445c5989c983c1e133b">list_remove</a>(ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>, peer);</div>
<div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01518"></a><span class="lineno"> 1518</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l01519"></a><span class="lineno"> 1519</span>&#160;    <a class="code" href="debug_8c.html#a66cb8756d40a3326315d9b5f003a5a76">dtls_dsrv_log_addr</a>(<a class="code" href="debug_8h.html#a5cae2fb7fec0dd9e63cf2d755642cd9da87f82ea2bdc3f03d9f6d3355a5f8a020">DTLS_LOG_DEBUG</a>, <span class="stringliteral">&quot;removed peer&quot;</span>, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>);</div>
<div class="line"><a name="l01520"></a><span class="lineno"> 1520</span>&#160;  }</div>
<div class="line"><a name="l01521"></a><span class="lineno"> 1521</span>&#160;  <a class="code" href="peer_8c.html#a037178c201b2e6b7361570ff700f059d">dtls_free_peer</a>(peer);</div>
<div class="line"><a name="l01522"></a><span class="lineno"> 1522</span>&#160;}</div>
<div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>&#160;</div>
<div class="line"><a name="l01539"></a><span class="lineno"> 1539</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01540"></a><span class="lineno"><a class="line" href="dtls_8c.html#a604f68a801e55b884f7f7f1d2f1b9c9f"> 1540</a></span>&#160;<a class="code" href="dtls_8c.html#a604f68a801e55b884f7f7f1d2f1b9c9f">dtls_verify_peer</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>&#160;         <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, </div>
<div class="line"><a name="l01542"></a><span class="lineno"> 1542</span>&#160;         <a class="code" href="structsession__t.html">session_t</a> *session,</div>
<div class="line"><a name="l01543"></a><span class="lineno"> 1543</span>&#160;         <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l01544"></a><span class="lineno"> 1544</span>&#160;{</div>
<div class="line"><a name="l01545"></a><span class="lineno"> 1545</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[<a class="code" href="dtls_8c.html#a85d3d5311baabdaa06b7824528eef4e5">DTLS_HV_LENGTH</a> + <a class="code" href="dtls_8h.html#a09e4f571633bdb724236ac68459715b6">DTLS_COOKIE_LENGTH</a>];</div>
<div class="line"><a name="l01546"></a><span class="lineno"> 1546</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p = buf;</div>
<div class="line"><a name="l01547"></a><span class="lineno"> 1547</span>&#160;  <span class="keywordtype">int</span> len = <a class="code" href="dtls_8h.html#a09e4f571633bdb724236ac68459715b6">DTLS_COOKIE_LENGTH</a>;</div>
<div class="line"><a name="l01548"></a><span class="lineno"> 1548</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *cookie = NULL;</div>
<div class="line"><a name="l01549"></a><span class="lineno"> 1549</span>&#160;  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l01550"></a><span class="lineno"> 1550</span>&#160;<span class="preprocessor">#undef mycookie</span></div>
<div class="line"><a name="l01551"></a><span class="lineno"> 1551</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define mycookie (buf + DTLS_HV_LENGTH)</span></div>
<div class="line"><a name="l01552"></a><span class="lineno"> 1552</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l01553"></a><span class="lineno"> 1553</span>&#160;  <span class="comment">/* Store cookie where we can reuse it for the HelloVerify request. */</span></div>
<div class="line"><a name="l01554"></a><span class="lineno"> 1554</span>&#160;  err = <a class="code" href="dtls_8c.html#a45841106ebcb5b1373c0312842b90943">dtls_create_cookie</a>(ctx, session, data, data_length, <a class="code" href="dtls_8c.html#a97496e1be0f2fe54873b35ee8bf0d462">mycookie</a>, &amp;len);</div>
<div class="line"><a name="l01555"></a><span class="lineno"> 1555</span>&#160;  <span class="keywordflow">if</span> (err &lt; 0)</div>
<div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>&#160;    <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l01557"></a><span class="lineno"> 1557</span>&#160;</div>
<div class="line"><a name="l01558"></a><span class="lineno"> 1558</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;create cookie&quot;</span>, <a class="code" href="dtls_8c.html#a97496e1be0f2fe54873b35ee8bf0d462">mycookie</a>, len);</div>
<div class="line"><a name="l01559"></a><span class="lineno"> 1559</span>&#160;</div>
<div class="line"><a name="l01560"></a><span class="lineno"> 1560</span>&#160;  assert(len == <a class="code" href="dtls_8h.html#a09e4f571633bdb724236ac68459715b6">DTLS_COOKIE_LENGTH</a>);</div>
<div class="line"><a name="l01561"></a><span class="lineno"> 1561</span>&#160;    </div>
<div class="line"><a name="l01562"></a><span class="lineno"> 1562</span>&#160;  <span class="comment">/* Perform cookie check. */</span></div>
<div class="line"><a name="l01563"></a><span class="lineno"> 1563</span>&#160;  len = <a class="code" href="dtls_8c.html#a8546683053c19be38b23aa9042139f4b">dtls_get_cookie</a>(data, data_length, &amp;cookie);</div>
<div class="line"><a name="l01564"></a><span class="lineno"> 1564</span>&#160;  <span class="keywordflow">if</span> (len &lt; 0) {</div>
<div class="line"><a name="l01565"></a><span class="lineno"> 1565</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error while fetching the cookie, err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l01566"></a><span class="lineno"> 1566</span>&#160;    <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l01567"></a><span class="lineno"> 1567</span>&#160;  }</div>
<div class="line"><a name="l01568"></a><span class="lineno"> 1568</span>&#160;</div>
<div class="line"><a name="l01569"></a><span class="lineno"> 1569</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;compare with cookie&quot;</span>, cookie, len);</div>
<div class="line"><a name="l01570"></a><span class="lineno"> 1570</span>&#160;</div>
<div class="line"><a name="l01571"></a><span class="lineno"> 1571</span>&#160;  <span class="comment">/* check if cookies match */</span></div>
<div class="line"><a name="l01572"></a><span class="lineno"> 1572</span>&#160;  <span class="keywordflow">if</span> (len == <a class="code" href="dtls_8h.html#a09e4f571633bdb724236ac68459715b6">DTLS_COOKIE_LENGTH</a> &amp;&amp; memcmp(cookie, <a class="code" href="dtls_8c.html#a97496e1be0f2fe54873b35ee8bf0d462">mycookie</a>, len) == 0) {</div>
<div class="line"><a name="l01573"></a><span class="lineno"> 1573</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;found matching cookie\n&quot;</span>);</div>
<div class="line"><a name="l01574"></a><span class="lineno"> 1574</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l01575"></a><span class="lineno"> 1575</span>&#160;  }</div>
<div class="line"><a name="l01576"></a><span class="lineno"> 1576</span>&#160;</div>
<div class="line"><a name="l01577"></a><span class="lineno"> 1577</span>&#160;  <span class="keywordflow">if</span> (len &gt; 0) {</div>
<div class="line"><a name="l01578"></a><span class="lineno"> 1578</span>&#160;    <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;invalid cookie&quot;</span>, cookie, len);</div>
<div class="line"><a name="l01579"></a><span class="lineno"> 1579</span>&#160;  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01580"></a><span class="lineno"> 1580</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;cookie len is 0!\n&quot;</span>);</div>
<div class="line"><a name="l01581"></a><span class="lineno"> 1581</span>&#160;  }</div>
<div class="line"><a name="l01582"></a><span class="lineno"> 1582</span>&#160;</div>
<div class="line"><a name="l01583"></a><span class="lineno"> 1583</span>&#160;  <span class="comment">/* ClientHello did not contain any valid cookie, hence we send a</span></div>
<div class="line"><a name="l01584"></a><span class="lineno"> 1584</span>&#160;<span class="comment">   * HelloVerify request. */</span></div>
<div class="line"><a name="l01585"></a><span class="lineno"> 1585</span>&#160;</div>
<div class="line"><a name="l01586"></a><span class="lineno"> 1586</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="dtls_8h.html#af0c44db3bf3a6a52e9ed271218daeaa6">DTLS_VERSION</a>);</div>
<div class="line"><a name="l01587"></a><span class="lineno"> 1587</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01588"></a><span class="lineno"> 1588</span>&#160;</div>
<div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="dtls_8h.html#a09e4f571633bdb724236ac68459715b6">DTLS_COOKIE_LENGTH</a>);</div>
<div class="line"><a name="l01590"></a><span class="lineno"> 1590</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01591"></a><span class="lineno"> 1591</span>&#160;</div>
<div class="line"><a name="l01592"></a><span class="lineno"> 1592</span>&#160;  assert(p == <a class="code" href="dtls_8c.html#a97496e1be0f2fe54873b35ee8bf0d462">mycookie</a>);</div>
<div class="line"><a name="l01593"></a><span class="lineno"> 1593</span>&#160;</div>
<div class="line"><a name="l01594"></a><span class="lineno"> 1594</span>&#160;  p += <a class="code" href="dtls_8h.html#a09e4f571633bdb724236ac68459715b6">DTLS_COOKIE_LENGTH</a>;</div>
<div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>&#160;</div>
<div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>&#160;  <span class="comment">/* TODO use the same record sequence number as in the ClientHello,</span></div>
<div class="line"><a name="l01597"></a><span class="lineno"> 1597</span>&#160;<span class="comment">     see 4.2.1. Denial-of-Service Countermeasures */</span></div>
<div class="line"><a name="l01598"></a><span class="lineno"> 1598</span>&#160;  err = <a class="code" href="dtls_8c.html#a4f06884f659f6a5120be7e0b86d29880">dtls_send_handshake_msg_hash</a>(ctx, peer, session,</div>
<div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>&#160;                     <a class="code" href="dtls_8h.html#ab04f98f1863c785fabd97925c9746f7d">DTLS_HT_HELLO_VERIFY_REQUEST</a>,</div>
<div class="line"><a name="l01600"></a><span class="lineno"> 1600</span>&#160;                     buf, p - buf, 0);</div>
<div class="line"><a name="l01601"></a><span class="lineno"> 1601</span>&#160;  <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;cannot send HelloVerify request\n&quot;</span>);</div>
<div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>&#160;  }</div>
<div class="line"><a name="l01604"></a><span class="lineno"> 1604</span>&#160;  <span class="keywordflow">return</span> err; <span class="comment">/* HelloVerify is sent, now we cannot do anything but wait */</span></div>
<div class="line"><a name="l01605"></a><span class="lineno"> 1605</span>&#160;</div>
<div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>&#160;<span class="preprocessor">#undef mycookie</span></div>
<div class="line"><a name="l01607"></a><span class="lineno"> 1607</span>&#160;<span class="preprocessor"></span>}</div>
<div class="line"><a name="l01608"></a><span class="lineno"> 1608</span>&#160;</div>
<div class="line"><a name="l01609"></a><span class="lineno"> 1609</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l01610"></a><span class="lineno"> 1610</span>&#160;<span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01611"></a><span class="lineno"><a class="line" href="dtls_8c.html#af8409ba213cb87dbf9ed16ef87995c54"> 1611</a></span>&#160;<a class="code" href="dtls_8c.html#af8409ba213cb87dbf9ed16ef87995c54">dtls_check_ecdsa_signature_elem</a>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length,</div>
<div class="line"><a name="l01612"></a><span class="lineno"> 1612</span>&#160;                <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> **result_r,</div>
<div class="line"><a name="l01613"></a><span class="lineno"> 1613</span>&#160;                <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> **result_s)</div>
<div class="line"><a name="l01614"></a><span class="lineno"> 1614</span>&#160;{</div>
<div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>&#160;  <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l01616"></a><span class="lineno"> 1616</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data_orig = data;</div>
<div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>&#160;</div>
<div class="line"><a name="l01618"></a><span class="lineno"> 1618</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != <a class="code" href="global_8h.html#aa347771eab2eabd24c4b9311fa61c4c9">TLS_EXT_SIG_HASH_ALGO_SHA256</a>) {</div>
<div class="line"><a name="l01619"></a><span class="lineno"> 1619</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;only sha256 is supported in certificate verify\n&quot;</span>);</div>
<div class="line"><a name="l01620"></a><span class="lineno"> 1620</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l01621"></a><span class="lineno"> 1621</span>&#160;  }</div>
<div class="line"><a name="l01622"></a><span class="lineno"> 1622</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01623"></a><span class="lineno"> 1623</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01624"></a><span class="lineno"> 1624</span>&#160;</div>
<div class="line"><a name="l01625"></a><span class="lineno"> 1625</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != <a class="code" href="global_8h.html#af126227a026a7af436a4323db6d02ecc">TLS_EXT_SIG_HASH_ALGO_ECDSA</a>) {</div>
<div class="line"><a name="l01626"></a><span class="lineno"> 1626</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;only ecdsa signature is supported in client verify\n&quot;</span>);</div>
<div class="line"><a name="l01627"></a><span class="lineno"> 1627</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l01628"></a><span class="lineno"> 1628</span>&#160;  }</div>
<div class="line"><a name="l01629"></a><span class="lineno"> 1629</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01630"></a><span class="lineno"> 1630</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01631"></a><span class="lineno"> 1631</span>&#160;</div>
<div class="line"><a name="l01632"></a><span class="lineno"> 1632</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data)) {</div>
<div class="line"><a name="l01633"></a><span class="lineno"> 1633</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;signature length wrong\n&quot;</span>);</div>
<div class="line"><a name="l01634"></a><span class="lineno"> 1634</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l01635"></a><span class="lineno"> 1635</span>&#160;  }</div>
<div class="line"><a name="l01636"></a><span class="lineno"> 1636</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01637"></a><span class="lineno"> 1637</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01638"></a><span class="lineno"> 1638</span>&#160;</div>
<div class="line"><a name="l01639"></a><span class="lineno"> 1639</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != 0x30) {</div>
<div class="line"><a name="l01640"></a><span class="lineno"> 1640</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;wrong ASN.1 struct, expected SEQUENCE\n&quot;</span>);</div>
<div class="line"><a name="l01641"></a><span class="lineno"> 1641</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l01642"></a><span class="lineno"> 1642</span>&#160;  }</div>
<div class="line"><a name="l01643"></a><span class="lineno"> 1643</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01644"></a><span class="lineno"> 1644</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01645"></a><span class="lineno"> 1645</span>&#160;</div>
<div class="line"><a name="l01646"></a><span class="lineno"> 1646</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data)) {</div>
<div class="line"><a name="l01647"></a><span class="lineno"> 1647</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;signature length wrong\n&quot;</span>);</div>
<div class="line"><a name="l01648"></a><span class="lineno"> 1648</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>&#160;  }</div>
<div class="line"><a name="l01650"></a><span class="lineno"> 1650</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01651"></a><span class="lineno"> 1651</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01652"></a><span class="lineno"> 1652</span>&#160;</div>
<div class="line"><a name="l01653"></a><span class="lineno"> 1653</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != 0x02) {</div>
<div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;wrong ASN.1 struct, expected Integer\n&quot;</span>);</div>
<div class="line"><a name="l01655"></a><span class="lineno"> 1655</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l01656"></a><span class="lineno"> 1656</span>&#160;  }</div>
<div class="line"><a name="l01657"></a><span class="lineno"> 1657</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01659"></a><span class="lineno"> 1659</span>&#160;</div>
<div class="line"><a name="l01660"></a><span class="lineno"> 1660</span>&#160;  i = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l01661"></a><span class="lineno"> 1661</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01662"></a><span class="lineno"> 1662</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01663"></a><span class="lineno"> 1663</span>&#160;</div>
<div class="line"><a name="l01664"></a><span class="lineno"> 1664</span>&#160;  <span class="comment">/* Sometimes these values have a leeding 0 byte */</span></div>
<div class="line"><a name="l01665"></a><span class="lineno"> 1665</span>&#160;  *result_r = data + i - <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>;</div>
<div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>&#160;</div>
<div class="line"><a name="l01667"></a><span class="lineno"> 1667</span>&#160;  data += i;</div>
<div class="line"><a name="l01668"></a><span class="lineno"> 1668</span>&#160;  data_length -= i;</div>
<div class="line"><a name="l01669"></a><span class="lineno"> 1669</span>&#160;</div>
<div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != 0x02) {</div>
<div class="line"><a name="l01671"></a><span class="lineno"> 1671</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;wrong ASN.1 struct, expected Integer\n&quot;</span>);</div>
<div class="line"><a name="l01672"></a><span class="lineno"> 1672</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l01673"></a><span class="lineno"> 1673</span>&#160;  }</div>
<div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01676"></a><span class="lineno"> 1676</span>&#160;</div>
<div class="line"><a name="l01677"></a><span class="lineno"> 1677</span>&#160;  i = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l01678"></a><span class="lineno"> 1678</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01679"></a><span class="lineno"> 1679</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01680"></a><span class="lineno"> 1680</span>&#160;</div>
<div class="line"><a name="l01681"></a><span class="lineno"> 1681</span>&#160;  <span class="comment">/* Sometimes these values have a leeding 0 byte */</span></div>
<div class="line"><a name="l01682"></a><span class="lineno"> 1682</span>&#160;  *result_s = data + i - <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>;</div>
<div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>&#160;</div>
<div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>&#160;  data += i;</div>
<div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>&#160;  data_length -= i;</div>
<div class="line"><a name="l01686"></a><span class="lineno"> 1686</span>&#160;</div>
<div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>&#160;  <span class="keywordflow">return</span> data - data_orig;</div>
<div class="line"><a name="l01688"></a><span class="lineno"> 1688</span>&#160;}</div>
<div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>&#160;</div>
<div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01691"></a><span class="lineno"><a class="line" href="dtls_8c.html#a017195b30506fbdf32fff55af9276a02"> 1691</a></span>&#160;<a class="code" href="dtls_8c.html#a017195b30506fbdf32fff55af9276a02">check_client_certificate_verify</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>&#160;                <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l01693"></a><span class="lineno"> 1693</span>&#160;                <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l01694"></a><span class="lineno"> 1694</span>&#160;{</div>
<div class="line"><a name="l01695"></a><span class="lineno"> 1695</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *config = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>&#160;  <span class="keywordtype">int</span> ret;</div>
<div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result_r;</div>
<div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result_s;</div>
<div class="line"><a name="l01699"></a><span class="lineno"> 1699</span>&#160;  <a class="code" href="hmac_8h.html#abb19650a510c73117da0e9b88d68f159">dtls_hash_ctx</a> hs_hash;</div>
<div class="line"><a name="l01700"></a><span class="lineno"> 1700</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> sha256hash[<a class="code" href="group__HMAC.html#ga060019cf2dab9903d58118fe1abe7018">DTLS_HMAC_DIGEST_SIZE</a>];</div>
<div class="line"><a name="l01701"></a><span class="lineno"> 1701</span>&#160;</div>
<div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>&#160;  assert(<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>));</div>
<div class="line"><a name="l01703"></a><span class="lineno"> 1703</span>&#160;</div>
<div class="line"><a name="l01704"></a><span class="lineno"> 1704</span>&#160;  data += <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>;</div>
<div class="line"><a name="l01705"></a><span class="lineno"> 1705</span>&#160;</div>
<div class="line"><a name="l01706"></a><span class="lineno"> 1706</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#a0bcce8fa79dc3187eb5f1655798ac816">DTLS_CV_LENGTH</a>) {</div>
<div class="line"><a name="l01707"></a><span class="lineno"> 1707</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;the packet length does not match the expected\n&quot;</span>);</div>
<div class="line"><a name="l01708"></a><span class="lineno"> 1708</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>&#160;  }</div>
<div class="line"><a name="l01710"></a><span class="lineno"> 1710</span>&#160;</div>
<div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>&#160;  ret = <a class="code" href="dtls_8c.html#af8409ba213cb87dbf9ed16ef87995c54">dtls_check_ecdsa_signature_elem</a>(data, data_length, &amp;result_r, &amp;result_s);</div>
<div class="line"><a name="l01712"></a><span class="lineno"> 1712</span>&#160;  <span class="keywordflow">if</span> (ret &lt; 0) {</div>
<div class="line"><a name="l01713"></a><span class="lineno"> 1713</span>&#160;    <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l01714"></a><span class="lineno"> 1714</span>&#160;  }</div>
<div class="line"><a name="l01715"></a><span class="lineno"> 1715</span>&#160;  data += ret;</div>
<div class="line"><a name="l01716"></a><span class="lineno"> 1716</span>&#160;  data_length -= ret;</div>
<div class="line"><a name="l01717"></a><span class="lineno"> 1717</span>&#160;</div>
<div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>&#160;  <a class="code" href="dtls_8c.html#a22ab7a79391c2204337237949d69dad8">copy_hs_hash</a>(peer, &amp;hs_hash);</div>
<div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>&#160;</div>
<div class="line"><a name="l01720"></a><span class="lineno"> 1720</span>&#160;  <a class="code" href="hmac_8h.html#a96801bbb62f4c9c872b22cd8e438e51e">dtls_hash_finalize</a>(sha256hash, &amp;hs_hash);</div>
<div class="line"><a name="l01721"></a><span class="lineno"> 1721</span>&#160;</div>
<div class="line"><a name="l01722"></a><span class="lineno"> 1722</span>&#160;  ret = <a class="code" href="crypto_8c.html#a802b3a2b267747a76d4557c6c9a899d7">dtls_ecdsa_verify_sig_hash</a>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_x, config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_y,</div>
<div class="line"><a name="l01723"></a><span class="lineno"> 1723</span>&#160;                <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_x),</div>
<div class="line"><a name="l01724"></a><span class="lineno"> 1724</span>&#160;                sha256hash, <span class="keyword">sizeof</span>(sha256hash),</div>
<div class="line"><a name="l01725"></a><span class="lineno"> 1725</span>&#160;                result_r, result_s);</div>
<div class="line"><a name="l01726"></a><span class="lineno"> 1726</span>&#160;</div>
<div class="line"><a name="l01727"></a><span class="lineno"> 1727</span>&#160;  <span class="keywordflow">if</span> (ret &lt; 0) {</div>
<div class="line"><a name="l01728"></a><span class="lineno"> 1728</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;wrong signature err: %i\n&quot;</span>, ret);</div>
<div class="line"><a name="l01729"></a><span class="lineno"> 1729</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l01730"></a><span class="lineno"> 1730</span>&#160;  }</div>
<div class="line"><a name="l01731"></a><span class="lineno"> 1731</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l01732"></a><span class="lineno"> 1732</span>&#160;}</div>
<div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01734"></a><span class="lineno"> 1734</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l01735"></a><span class="lineno"> 1735</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01736"></a><span class="lineno"><a class="line" href="dtls_8c.html#a7730a402edfca00c35bc1c7c09eb2fb9"> 1736</a></span>&#160;<a class="code" href="dtls_8c.html#a7730a402edfca00c35bc1c7c09eb2fb9">dtls_send_server_hello</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer)</div>
<div class="line"><a name="l01737"></a><span class="lineno"> 1737</span>&#160;{</div>
<div class="line"><a name="l01738"></a><span class="lineno"> 1738</span>&#160;  <span class="comment">/* Ensure that the largest message to create fits in our source</span></div>
<div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>&#160;<span class="comment">   * buffer. (The size of the destination buffer is checked by the</span></div>
<div class="line"><a name="l01740"></a><span class="lineno"> 1740</span>&#160;<span class="comment">   * encoding function, so we do not need to guess.) */</span></div>
<div class="line"><a name="l01741"></a><span class="lineno"> 1741</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[<a class="code" href="dtls_8c.html#afcca5dc5ebcc9eb8141ca0b49b647676">DTLS_SH_LENGTH</a> + 2 + 5 + 5 + 8 + 6];</div>
<div class="line"><a name="l01742"></a><span class="lineno"> 1742</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p;</div>
<div class="line"><a name="l01743"></a><span class="lineno"> 1743</span>&#160;  <span class="keywordtype">int</span> ecdsa;</div>
<div class="line"><a name="l01744"></a><span class="lineno"> 1744</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> extension_size;</div>
<div class="line"><a name="l01745"></a><span class="lineno"> 1745</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *handshake = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l01746"></a><span class="lineno"> 1746</span>&#160;  <a class="code" href="group__clock.html#gaded617551180951f4841969e396a8012">dtls_tick_t</a> now;</div>
<div class="line"><a name="l01747"></a><span class="lineno"> 1747</span>&#160;</div>
<div class="line"><a name="l01748"></a><span class="lineno"> 1748</span>&#160;  ecdsa = <a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>);</div>
<div class="line"><a name="l01749"></a><span class="lineno"> 1749</span>&#160;</div>
<div class="line"><a name="l01750"></a><span class="lineno"> 1750</span>&#160;  extension_size = (ecdsa) ? 2 + 5 + 5 + 6 : 0;</div>
<div class="line"><a name="l01751"></a><span class="lineno"> 1751</span>&#160;</div>
<div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>&#160;  <span class="comment">/* Handshake header */</span></div>
<div class="line"><a name="l01753"></a><span class="lineno"> 1753</span>&#160;  p = buf;</div>
<div class="line"><a name="l01754"></a><span class="lineno"> 1754</span>&#160;</div>
<div class="line"><a name="l01755"></a><span class="lineno"> 1755</span>&#160;  <span class="comment">/* ServerHello */</span></div>
<div class="line"><a name="l01756"></a><span class="lineno"> 1756</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="dtls_8h.html#af0c44db3bf3a6a52e9ed271218daeaa6">DTLS_VERSION</a>);</div>
<div class="line"><a name="l01757"></a><span class="lineno"> 1757</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01758"></a><span class="lineno"> 1758</span>&#160;</div>
<div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>&#160;  <span class="comment">/* Set server random: First 4 bytes are the server&#39;s Unix timestamp,</span></div>
<div class="line"><a name="l01760"></a><span class="lineno"> 1760</span>&#160;<span class="comment">   * followed by 28 bytes of generate random data. */</span></div>
<div class="line"><a name="l01761"></a><span class="lineno"> 1761</span>&#160;  <a class="code" href="group__clock.html#ga1834985745ba5d3dd03f7e7498e3a304">dtls_ticks</a>(&amp;now);</div>
<div class="line"><a name="l01762"></a><span class="lineno"> 1762</span>&#160;  <a class="code" href="numeric_8h.html#a6914ee523b27539f4e441bede8c072b4">dtls_int_to_uint32</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.server, now / <a class="code" href="group__clock.html#gae3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a>);</div>
<div class="line"><a name="l01763"></a><span class="lineno"> 1763</span>&#160;  <a class="code" href="group__prng.html#ga3f4036a1abfcec552ab583a2dc37be6c">dtls_prng</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.server + 4, 28);</div>
<div class="line"><a name="l01764"></a><span class="lineno"> 1764</span>&#160;</div>
<div class="line"><a name="l01765"></a><span class="lineno"> 1765</span>&#160;  memcpy(p, handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.server, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>);</div>
<div class="line"><a name="l01766"></a><span class="lineno"> 1766</span>&#160;  p += <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>;</div>
<div class="line"><a name="l01767"></a><span class="lineno"> 1767</span>&#160;</div>
<div class="line"><a name="l01768"></a><span class="lineno"> 1768</span>&#160;  *p++ = 0;         <span class="comment">/* no session id */</span></div>
<div class="line"><a name="l01769"></a><span class="lineno"> 1769</span>&#160;</div>
<div class="line"><a name="l01770"></a><span class="lineno"> 1770</span>&#160;  <span class="keywordflow">if</span> (handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a> != <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd">TLS_NULL_WITH_NULL_NULL</a>) {</div>
<div class="line"><a name="l01771"></a><span class="lineno"> 1771</span>&#160;    <span class="comment">/* selected cipher suite */</span></div>
<div class="line"><a name="l01772"></a><span class="lineno"> 1772</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>);</div>
<div class="line"><a name="l01773"></a><span class="lineno"> 1773</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01774"></a><span class="lineno"> 1774</span>&#160;</div>
<div class="line"><a name="l01775"></a><span class="lineno"> 1775</span>&#160;    <span class="comment">/* selected compression method */</span></div>
<div class="line"><a name="l01776"></a><span class="lineno"> 1776</span>&#160;    *p++ = <a class="code" href="dtls_8c.html#ae35671d94ccea5f335546ce409aed601">compression_methods</a>[handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a67f85371953c8ae07ec110cb39c13125">compression</a>];</div>
<div class="line"><a name="l01777"></a><span class="lineno"> 1777</span>&#160;  }</div>
<div class="line"><a name="l01778"></a><span class="lineno"> 1778</span>&#160;</div>
<div class="line"><a name="l01779"></a><span class="lineno"> 1779</span>&#160;  <span class="keywordflow">if</span> (extension_size) {</div>
<div class="line"><a name="l01780"></a><span class="lineno"> 1780</span>&#160;    <span class="comment">/* length of the extensions */</span></div>
<div class="line"><a name="l01781"></a><span class="lineno"> 1781</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, extension_size - 2);</div>
<div class="line"><a name="l01782"></a><span class="lineno"> 1782</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01783"></a><span class="lineno"> 1783</span>&#160;  }</div>
<div class="line"><a name="l01784"></a><span class="lineno"> 1784</span>&#160;</div>
<div class="line"><a name="l01785"></a><span class="lineno"> 1785</span>&#160;  <span class="keywordflow">if</span> (ecdsa) {</div>
<div class="line"><a name="l01786"></a><span class="lineno"> 1786</span>&#160;    <span class="comment">/* client certificate type extension */</span></div>
<div class="line"><a name="l01787"></a><span class="lineno"> 1787</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#a0074adc0b2543a913a597e510caf27b0">TLS_EXT_CLIENT_CERTIFICATE_TYPE</a>);</div>
<div class="line"><a name="l01788"></a><span class="lineno"> 1788</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01789"></a><span class="lineno"> 1789</span>&#160;</div>
<div class="line"><a name="l01790"></a><span class="lineno"> 1790</span>&#160;    <span class="comment">/* length of this extension type */</span></div>
<div class="line"><a name="l01791"></a><span class="lineno"> 1791</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, 1);</div>
<div class="line"><a name="l01792"></a><span class="lineno"> 1792</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01793"></a><span class="lineno"> 1793</span>&#160;</div>
<div class="line"><a name="l01794"></a><span class="lineno"> 1794</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#af36d51830256b7d1bf4dbaa8590c19e4">TLS_CERT_TYPE_RAW_PUBLIC_KEY</a>);</div>
<div class="line"><a name="l01795"></a><span class="lineno"> 1795</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01796"></a><span class="lineno"> 1796</span>&#160;</div>
<div class="line"><a name="l01797"></a><span class="lineno"> 1797</span>&#160;    <span class="comment">/* client certificate type extension */</span></div>
<div class="line"><a name="l01798"></a><span class="lineno"> 1798</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#ad465b86d1841ddd6c2209ff304895a95">TLS_EXT_SERVER_CERTIFICATE_TYPE</a>);</div>
<div class="line"><a name="l01799"></a><span class="lineno"> 1799</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01800"></a><span class="lineno"> 1800</span>&#160;</div>
<div class="line"><a name="l01801"></a><span class="lineno"> 1801</span>&#160;    <span class="comment">/* length of this extension type */</span></div>
<div class="line"><a name="l01802"></a><span class="lineno"> 1802</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, 1);</div>
<div class="line"><a name="l01803"></a><span class="lineno"> 1803</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01804"></a><span class="lineno"> 1804</span>&#160;</div>
<div class="line"><a name="l01805"></a><span class="lineno"> 1805</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#af36d51830256b7d1bf4dbaa8590c19e4">TLS_CERT_TYPE_RAW_PUBLIC_KEY</a>);</div>
<div class="line"><a name="l01806"></a><span class="lineno"> 1806</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01807"></a><span class="lineno"> 1807</span>&#160;</div>
<div class="line"><a name="l01808"></a><span class="lineno"> 1808</span>&#160;    <span class="comment">/* ec_point_formats */</span></div>
<div class="line"><a name="l01809"></a><span class="lineno"> 1809</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#a5d17863db920927ef8160547541b58e3">TLS_EXT_EC_POINT_FORMATS</a>);</div>
<div class="line"><a name="l01810"></a><span class="lineno"> 1810</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01811"></a><span class="lineno"> 1811</span>&#160;</div>
<div class="line"><a name="l01812"></a><span class="lineno"> 1812</span>&#160;    <span class="comment">/* length of this extension type */</span></div>
<div class="line"><a name="l01813"></a><span class="lineno"> 1813</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, 2);</div>
<div class="line"><a name="l01814"></a><span class="lineno"> 1814</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01815"></a><span class="lineno"> 1815</span>&#160;</div>
<div class="line"><a name="l01816"></a><span class="lineno"> 1816</span>&#160;    <span class="comment">/* number of supported formats */</span></div>
<div class="line"><a name="l01817"></a><span class="lineno"> 1817</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 1);</div>
<div class="line"><a name="l01818"></a><span class="lineno"> 1818</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01819"></a><span class="lineno"> 1819</span>&#160;</div>
<div class="line"><a name="l01820"></a><span class="lineno"> 1820</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#af086ed2d0aea096be56bf7e46f8f72a6">TLS_EXT_EC_POINT_FORMATS_UNCOMPRESSED</a>);</div>
<div class="line"><a name="l01821"></a><span class="lineno"> 1821</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01822"></a><span class="lineno"> 1822</span>&#160;  }</div>
<div class="line"><a name="l01823"></a><span class="lineno"> 1823</span>&#160;</div>
<div class="line"><a name="l01824"></a><span class="lineno"> 1824</span>&#160;  assert(p - buf &lt;= <span class="keyword">sizeof</span>(buf));</div>
<div class="line"><a name="l01825"></a><span class="lineno"> 1825</span>&#160;</div>
<div class="line"><a name="l01826"></a><span class="lineno"> 1826</span>&#160;  <span class="comment">/* TODO use the same record sequence number as in the ClientHello,</span></div>
<div class="line"><a name="l01827"></a><span class="lineno"> 1827</span>&#160;<span class="comment">     see 4.2.1. Denial-of-Service Countermeasures */</span></div>
<div class="line"><a name="l01828"></a><span class="lineno"> 1828</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a>(ctx, peer, <a class="code" href="dtls_8h.html#ad5882a5ff4073ffefa266bb2c4a1ee3c">DTLS_HT_SERVER_HELLO</a>,</div>
<div class="line"><a name="l01829"></a><span class="lineno"> 1829</span>&#160;                 buf, p - buf);</div>
<div class="line"><a name="l01830"></a><span class="lineno"> 1830</span>&#160;}</div>
<div class="line"><a name="l01831"></a><span class="lineno"> 1831</span>&#160;</div>
<div class="line"><a name="l01832"></a><span class="lineno"> 1832</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l01833"></a><span class="lineno"> 1833</span>&#160;<span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01834"></a><span class="lineno"><a class="line" href="dtls_8c.html#a6b92c487825aa888acc0b55f5adc0220"> 1834</a></span>&#160;<a class="code" href="dtls_8c.html#a6b92c487825aa888acc0b55f5adc0220">dtls_send_certificate_ecdsa</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l01835"></a><span class="lineno"> 1835</span>&#160;                <span class="keyword">const</span> <a class="code" href="structdtls__ecdsa__key__t.html">dtls_ecdsa_key_t</a> *key)</div>
<div class="line"><a name="l01836"></a><span class="lineno"> 1836</span>&#160;{</div>
<div class="line"><a name="l01837"></a><span class="lineno"> 1837</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[<a class="code" href="dtls_8c.html#a6570b93f9f19e6abceef85c566fe3696">DTLS_CE_LENGTH</a>];</div>
<div class="line"><a name="l01838"></a><span class="lineno"> 1838</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p;</div>
<div class="line"><a name="l01839"></a><span class="lineno"> 1839</span>&#160;</div>
<div class="line"><a name="l01840"></a><span class="lineno"> 1840</span>&#160;  <span class="comment">/* Certificate </span></div>
<div class="line"><a name="l01841"></a><span class="lineno"> 1841</span>&#160;<span class="comment">   *</span></div>
<div class="line"><a name="l01842"></a><span class="lineno"> 1842</span>&#160;<span class="comment">   * Start message construction at beginning of buffer. */</span></div>
<div class="line"><a name="l01843"></a><span class="lineno"> 1843</span>&#160;  p = buf;</div>
<div class="line"><a name="l01844"></a><span class="lineno"> 1844</span>&#160;</div>
<div class="line"><a name="l01845"></a><span class="lineno"> 1845</span>&#160;  <a class="code" href="numeric_8h.html#aff276cdd846cd194a21e9c61549292f6">dtls_int_to_uint24</a>(p, 94);    <span class="comment">/* certificates length */</span></div>
<div class="line"><a name="l01846"></a><span class="lineno"> 1846</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">uint24</a>);</div>
<div class="line"><a name="l01847"></a><span class="lineno"> 1847</span>&#160;</div>
<div class="line"><a name="l01848"></a><span class="lineno"> 1848</span>&#160;  <a class="code" href="numeric_8h.html#aff276cdd846cd194a21e9c61549292f6">dtls_int_to_uint24</a>(p, 91);    <span class="comment">/* length of this certificate */</span></div>
<div class="line"><a name="l01849"></a><span class="lineno"> 1849</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">uint24</a>);</div>
<div class="line"><a name="l01850"></a><span class="lineno"> 1850</span>&#160;  </div>
<div class="line"><a name="l01851"></a><span class="lineno"> 1851</span>&#160;  memcpy(p, &amp;<a class="code" href="dtls_8c.html#aecdb18ea2b899994542ec46b23528738">cert_asn1_header</a>, <span class="keyword">sizeof</span>(<a class="code" href="dtls_8c.html#aecdb18ea2b899994542ec46b23528738">cert_asn1_header</a>));</div>
<div class="line"><a name="l01852"></a><span class="lineno"> 1852</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="dtls_8c.html#aecdb18ea2b899994542ec46b23528738">cert_asn1_header</a>);</div>
<div class="line"><a name="l01853"></a><span class="lineno"> 1853</span>&#160;</div>
<div class="line"><a name="l01854"></a><span class="lineno"> 1854</span>&#160;  memcpy(p, key-&gt;<a class="code" href="structdtls__ecdsa__key__t.html#aa54efc762737c1b94eaebae1262d4221">pub_key_x</a>, <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>);</div>
<div class="line"><a name="l01855"></a><span class="lineno"> 1855</span>&#160;  p += <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>;</div>
<div class="line"><a name="l01856"></a><span class="lineno"> 1856</span>&#160;</div>
<div class="line"><a name="l01857"></a><span class="lineno"> 1857</span>&#160;  memcpy(p, key-&gt;<a class="code" href="structdtls__ecdsa__key__t.html#aaceb7ea4b4f9e74fb2ec85c49746132f">pub_key_y</a>, <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>);</div>
<div class="line"><a name="l01858"></a><span class="lineno"> 1858</span>&#160;  p += <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>;</div>
<div class="line"><a name="l01859"></a><span class="lineno"> 1859</span>&#160;</div>
<div class="line"><a name="l01860"></a><span class="lineno"> 1860</span>&#160;  assert(p - buf &lt;= <span class="keyword">sizeof</span>(buf));</div>
<div class="line"><a name="l01861"></a><span class="lineno"> 1861</span>&#160;</div>
<div class="line"><a name="l01862"></a><span class="lineno"> 1862</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a>(ctx, peer, <a class="code" href="dtls_8h.html#a55a0a899d7f151e7f53b76fe8a82c10e">DTLS_HT_CERTIFICATE</a>,</div>
<div class="line"><a name="l01863"></a><span class="lineno"> 1863</span>&#160;                 buf, p - buf);</div>
<div class="line"><a name="l01864"></a><span class="lineno"> 1864</span>&#160;}</div>
<div class="line"><a name="l01865"></a><span class="lineno"> 1865</span>&#160;</div>
<div class="line"><a name="l01866"></a><span class="lineno"> 1866</span>&#160;<span class="keyword">static</span> <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *</div>
<div class="line"><a name="l01867"></a><span class="lineno"><a class="line" href="dtls_8c.html#a7d7af4d19c7abef4583c1667ec449a5d"> 1867</a></span>&#160;<a class="code" href="dtls_8c.html#a7d7af4d19c7abef4583c1667ec449a5d">dtls_add_ecdsa_signature_elem</a>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p, uint32_t *point_r, uint32_t *point_s)</div>
<div class="line"><a name="l01868"></a><span class="lineno"> 1868</span>&#160;{</div>
<div class="line"><a name="l01869"></a><span class="lineno"> 1869</span>&#160;  <span class="keywordtype">int</span> len_r;</div>
<div class="line"><a name="l01870"></a><span class="lineno"> 1870</span>&#160;  <span class="keywordtype">int</span> len_s;</div>
<div class="line"><a name="l01871"></a><span class="lineno"> 1871</span>&#160;</div>
<div class="line"><a name="l01872"></a><span class="lineno"> 1872</span>&#160;<span class="preprocessor">#define R_KEY_OFFSET (1 + 1 + 2 + 1 + 1 + 1 + 1)</span></div>
<div class="line"><a name="l01873"></a><span class="lineno"> 1873</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define S_KEY_OFFSET(len_s) (R_KEY_OFFSET + (len_s) + 1 + 1)</span></div>
<div class="line"><a name="l01874"></a><span class="lineno"> 1874</span>&#160;<span class="preprocessor"></span>  <span class="comment">/* store the pointer to the r component of the signature and make space */</span></div>
<div class="line"><a name="l01875"></a><span class="lineno"> 1875</span>&#160;  len_r = <a class="code" href="crypto_8c.html#a5ae24f3621f545752732e318840d7e2b">dtls_ec_key_from_uint32_asn1</a>(point_r, <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>, p + <a class="code" href="dtls_8c.html#ab7a17e13b17da97cbef046b20cd7280f">R_KEY_OFFSET</a>);</div>
<div class="line"><a name="l01876"></a><span class="lineno"> 1876</span>&#160;  len_s = <a class="code" href="crypto_8c.html#a5ae24f3621f545752732e318840d7e2b">dtls_ec_key_from_uint32_asn1</a>(point_s, <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>, p + <a class="code" href="dtls_8c.html#a2cf5795397ac5779f281543fc0f44ae9">S_KEY_OFFSET</a>(len_r));</div>
<div class="line"><a name="l01877"></a><span class="lineno"> 1877</span>&#160;</div>
<div class="line"><a name="l01878"></a><span class="lineno"> 1878</span>&#160;<span class="preprocessor">#undef R_KEY_OFFSET</span></div>
<div class="line"><a name="l01879"></a><span class="lineno"> 1879</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#undef S_KEY_OFFSET</span></div>
<div class="line"><a name="l01880"></a><span class="lineno"> 1880</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l01881"></a><span class="lineno"> 1881</span>&#160;  <span class="comment">/* sha256 */</span></div>
<div class="line"><a name="l01882"></a><span class="lineno"> 1882</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#aa347771eab2eabd24c4b9311fa61c4c9">TLS_EXT_SIG_HASH_ALGO_SHA256</a>);</div>
<div class="line"><a name="l01883"></a><span class="lineno"> 1883</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01884"></a><span class="lineno"> 1884</span>&#160;</div>
<div class="line"><a name="l01885"></a><span class="lineno"> 1885</span>&#160;  <span class="comment">/* ecdsa */</span></div>
<div class="line"><a name="l01886"></a><span class="lineno"> 1886</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#af126227a026a7af436a4323db6d02ecc">TLS_EXT_SIG_HASH_ALGO_ECDSA</a>);</div>
<div class="line"><a name="l01887"></a><span class="lineno"> 1887</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01888"></a><span class="lineno"> 1888</span>&#160;</div>
<div class="line"><a name="l01889"></a><span class="lineno"> 1889</span>&#160;  <span class="comment">/* length of signature */</span></div>
<div class="line"><a name="l01890"></a><span class="lineno"> 1890</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, len_r + len_s + 2 + 2 + 2);</div>
<div class="line"><a name="l01891"></a><span class="lineno"> 1891</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01892"></a><span class="lineno"> 1892</span>&#160;</div>
<div class="line"><a name="l01893"></a><span class="lineno"> 1893</span>&#160;  <span class="comment">/* ASN.1 SEQUENCE */</span></div>
<div class="line"><a name="l01894"></a><span class="lineno"> 1894</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 0x30);</div>
<div class="line"><a name="l01895"></a><span class="lineno"> 1895</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01896"></a><span class="lineno"> 1896</span>&#160;</div>
<div class="line"><a name="l01897"></a><span class="lineno"> 1897</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, len_r + len_s + 2 + 2);</div>
<div class="line"><a name="l01898"></a><span class="lineno"> 1898</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01899"></a><span class="lineno"> 1899</span>&#160;</div>
<div class="line"><a name="l01900"></a><span class="lineno"> 1900</span>&#160;  <span class="comment">/* ASN.1 Integer r */</span></div>
<div class="line"><a name="l01901"></a><span class="lineno"> 1901</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 0x02);</div>
<div class="line"><a name="l01902"></a><span class="lineno"> 1902</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01903"></a><span class="lineno"> 1903</span>&#160;</div>
<div class="line"><a name="l01904"></a><span class="lineno"> 1904</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, len_r);</div>
<div class="line"><a name="l01905"></a><span class="lineno"> 1905</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01906"></a><span class="lineno"> 1906</span>&#160;</div>
<div class="line"><a name="l01907"></a><span class="lineno"> 1907</span>&#160;  <span class="comment">/* the pint r was added here */</span></div>
<div class="line"><a name="l01908"></a><span class="lineno"> 1908</span>&#160;  p += len_r;</div>
<div class="line"><a name="l01909"></a><span class="lineno"> 1909</span>&#160;</div>
<div class="line"><a name="l01910"></a><span class="lineno"> 1910</span>&#160;  <span class="comment">/* ASN.1 Integer s */</span></div>
<div class="line"><a name="l01911"></a><span class="lineno"> 1911</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 0x02);</div>
<div class="line"><a name="l01912"></a><span class="lineno"> 1912</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01913"></a><span class="lineno"> 1913</span>&#160;</div>
<div class="line"><a name="l01914"></a><span class="lineno"> 1914</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, len_s);</div>
<div class="line"><a name="l01915"></a><span class="lineno"> 1915</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01916"></a><span class="lineno"> 1916</span>&#160;</div>
<div class="line"><a name="l01917"></a><span class="lineno"> 1917</span>&#160;  <span class="comment">/* the pint s was added here */</span></div>
<div class="line"><a name="l01918"></a><span class="lineno"> 1918</span>&#160;  p += len_s;</div>
<div class="line"><a name="l01919"></a><span class="lineno"> 1919</span>&#160;</div>
<div class="line"><a name="l01920"></a><span class="lineno"> 1920</span>&#160;  <span class="keywordflow">return</span> p;</div>
<div class="line"><a name="l01921"></a><span class="lineno"> 1921</span>&#160;}</div>
<div class="line"><a name="l01922"></a><span class="lineno"> 1922</span>&#160;</div>
<div class="line"><a name="l01923"></a><span class="lineno"> 1923</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01924"></a><span class="lineno"><a class="line" href="dtls_8c.html#a80275f06c14cbbc18095bc2f61022d15"> 1924</a></span>&#160;<a class="code" href="dtls_8c.html#a80275f06c14cbbc18095bc2f61022d15">dtls_send_server_key_exchange_ecdh</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l01925"></a><span class="lineno"> 1925</span>&#160;                   <span class="keyword">const</span> <a class="code" href="structdtls__ecdsa__key__t.html">dtls_ecdsa_key_t</a> *key)</div>
<div class="line"><a name="l01926"></a><span class="lineno"> 1926</span>&#160;{</div>
<div class="line"><a name="l01927"></a><span class="lineno"> 1927</span>&#160;  <span class="comment">/* The ASN.1 Integer representation of an 32 byte unsigned int could be</span></div>
<div class="line"><a name="l01928"></a><span class="lineno"> 1928</span>&#160;<span class="comment">   * 33 bytes long add space for that */</span></div>
<div class="line"><a name="l01929"></a><span class="lineno"> 1929</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[<a class="code" href="dtls_8c.html#ad9481c39cd66eac3059df28aef1e9843">DTLS_SKEXEC_LENGTH</a> + 2];</div>
<div class="line"><a name="l01930"></a><span class="lineno"> 1930</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p;</div>
<div class="line"><a name="l01931"></a><span class="lineno"> 1931</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *key_params;</div>
<div class="line"><a name="l01932"></a><span class="lineno"> 1932</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *ephemeral_pub_x;</div>
<div class="line"><a name="l01933"></a><span class="lineno"> 1933</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *ephemeral_pub_y;</div>
<div class="line"><a name="l01934"></a><span class="lineno"> 1934</span>&#160;  uint32_t point_r[9];</div>
<div class="line"><a name="l01935"></a><span class="lineno"> 1935</span>&#160;  uint32_t point_s[9];</div>
<div class="line"><a name="l01936"></a><span class="lineno"> 1936</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *config = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l01937"></a><span class="lineno"> 1937</span>&#160;</div>
<div class="line"><a name="l01938"></a><span class="lineno"> 1938</span>&#160;  <span class="comment">/* ServerKeyExchange </span></div>
<div class="line"><a name="l01939"></a><span class="lineno"> 1939</span>&#160;<span class="comment">   *</span></div>
<div class="line"><a name="l01940"></a><span class="lineno"> 1940</span>&#160;<span class="comment">   * Start message construction at beginning of buffer. */</span></div>
<div class="line"><a name="l01941"></a><span class="lineno"> 1941</span>&#160;  p = buf;</div>
<div class="line"><a name="l01942"></a><span class="lineno"> 1942</span>&#160;</div>
<div class="line"><a name="l01943"></a><span class="lineno"> 1943</span>&#160;  key_params = p;</div>
<div class="line"><a name="l01944"></a><span class="lineno"> 1944</span>&#160;  <span class="comment">/* ECCurveType curve_type: named_curve */</span></div>
<div class="line"><a name="l01945"></a><span class="lineno"> 1945</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 3);</div>
<div class="line"><a name="l01946"></a><span class="lineno"> 1946</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01947"></a><span class="lineno"> 1947</span>&#160;</div>
<div class="line"><a name="l01948"></a><span class="lineno"> 1948</span>&#160;  <span class="comment">/* NamedCurve namedcurve: secp256r1 */</span></div>
<div class="line"><a name="l01949"></a><span class="lineno"> 1949</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#a8095691f33c0ce6b22d205640ccc9417">TLS_EXT_ELLIPTIC_CURVES_SECP256R1</a>);</div>
<div class="line"><a name="l01950"></a><span class="lineno"> 1950</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l01951"></a><span class="lineno"> 1951</span>&#160;</div>
<div class="line"><a name="l01952"></a><span class="lineno"> 1952</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 1 + 2 * <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>);</div>
<div class="line"><a name="l01953"></a><span class="lineno"> 1953</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01954"></a><span class="lineno"> 1954</span>&#160;</div>
<div class="line"><a name="l01955"></a><span class="lineno"> 1955</span>&#160;  <span class="comment">/* This should be an uncompressed point, but I do not have access to the spec. */</span></div>
<div class="line"><a name="l01956"></a><span class="lineno"> 1956</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 4);</div>
<div class="line"><a name="l01957"></a><span class="lineno"> 1957</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l01958"></a><span class="lineno"> 1958</span>&#160;</div>
<div class="line"><a name="l01959"></a><span class="lineno"> 1959</span>&#160;  <span class="comment">/* store the pointer to the x component of the pub key and make space */</span></div>
<div class="line"><a name="l01960"></a><span class="lineno"> 1960</span>&#160;  ephemeral_pub_x = p;</div>
<div class="line"><a name="l01961"></a><span class="lineno"> 1961</span>&#160;  p += <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>;</div>
<div class="line"><a name="l01962"></a><span class="lineno"> 1962</span>&#160;</div>
<div class="line"><a name="l01963"></a><span class="lineno"> 1963</span>&#160;  <span class="comment">/* store the pointer to the y component of the pub key and make space */</span></div>
<div class="line"><a name="l01964"></a><span class="lineno"> 1964</span>&#160;  ephemeral_pub_y = p;</div>
<div class="line"><a name="l01965"></a><span class="lineno"> 1965</span>&#160;  p += <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>;</div>
<div class="line"><a name="l01966"></a><span class="lineno"> 1966</span>&#160;</div>
<div class="line"><a name="l01967"></a><span class="lineno"> 1967</span>&#160;  <a class="code" href="crypto_8c.html#a982fc9e78cd10d9323756b15b72c7970">dtls_ecdsa_generate_key</a>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.own_eph_priv,</div>
<div class="line"><a name="l01968"></a><span class="lineno"> 1968</span>&#160;              ephemeral_pub_x, ephemeral_pub_y,</div>
<div class="line"><a name="l01969"></a><span class="lineno"> 1969</span>&#160;              <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>);</div>
<div class="line"><a name="l01970"></a><span class="lineno"> 1970</span>&#160;</div>
<div class="line"><a name="l01971"></a><span class="lineno"> 1971</span>&#160;  <span class="comment">/* sign the ephemeral and its paramaters */</span></div>
<div class="line"><a name="l01972"></a><span class="lineno"> 1972</span>&#160;  <a class="code" href="crypto_8c.html#afa2d9b2a195a1d8e8c56b1af8cb7bc82">dtls_ecdsa_create_sig</a>(key-&gt;<a class="code" href="structdtls__ecdsa__key__t.html#a91769609f44590f193d726187ab366de">priv_key</a>, <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>,</div>
<div class="line"><a name="l01973"></a><span class="lineno"> 1973</span>&#160;               config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.client, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>,</div>
<div class="line"><a name="l01974"></a><span class="lineno"> 1974</span>&#160;               config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.server, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>,</div>
<div class="line"><a name="l01975"></a><span class="lineno"> 1975</span>&#160;               key_params, p - key_params,</div>
<div class="line"><a name="l01976"></a><span class="lineno"> 1976</span>&#160;               point_r, point_s);</div>
<div class="line"><a name="l01977"></a><span class="lineno"> 1977</span>&#160;</div>
<div class="line"><a name="l01978"></a><span class="lineno"> 1978</span>&#160;  p = <a class="code" href="dtls_8c.html#a7d7af4d19c7abef4583c1667ec449a5d">dtls_add_ecdsa_signature_elem</a>(p, point_r, point_s);</div>
<div class="line"><a name="l01979"></a><span class="lineno"> 1979</span>&#160;</div>
<div class="line"><a name="l01980"></a><span class="lineno"> 1980</span>&#160;  assert(p - buf &lt;= <span class="keyword">sizeof</span>(buf));</div>
<div class="line"><a name="l01981"></a><span class="lineno"> 1981</span>&#160;</div>
<div class="line"><a name="l01982"></a><span class="lineno"> 1982</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a>(ctx, peer, <a class="code" href="dtls_8h.html#aab327e17614cf2902c5fc6169466613f">DTLS_HT_SERVER_KEY_EXCHANGE</a>,</div>
<div class="line"><a name="l01983"></a><span class="lineno"> 1983</span>&#160;                 buf, p - buf);</div>
<div class="line"><a name="l01984"></a><span class="lineno"> 1984</span>&#160;}</div>
<div class="line"><a name="l01985"></a><span class="lineno"> 1985</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01986"></a><span class="lineno"> 1986</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l01987"></a><span class="lineno"> 1987</span>&#160;<span class="preprocessor">#ifdef DTLS_PSK</span></div>
<div class="line"><a name="l01988"></a><span class="lineno"> 1988</span>&#160;<span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01989"></a><span class="lineno"><a class="line" href="dtls_8c.html#a00f6591bce49f6122dab9827c8774ba3"> 1989</a></span>&#160;<a class="code" href="dtls_8c.html#a00f6591bce49f6122dab9827c8774ba3">dtls_send_server_key_exchange_psk</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l01990"></a><span class="lineno"> 1990</span>&#160;                  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *psk_hint, <span class="keywordtype">size_t</span> len)</div>
<div class="line"><a name="l01991"></a><span class="lineno"> 1991</span>&#160;{</div>
<div class="line"><a name="l01992"></a><span class="lineno"> 1992</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[<a class="code" href="dtls_8c.html#a8a4dc9af457241380a01c8e38fdc4e2d">DTLS_SKEXECPSK_LENGTH_MAX</a>];</div>
<div class="line"><a name="l01993"></a><span class="lineno"> 1993</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p;</div>
<div class="line"><a name="l01994"></a><span class="lineno"> 1994</span>&#160;</div>
<div class="line"><a name="l01995"></a><span class="lineno"> 1995</span>&#160;  p = buf;</div>
<div class="line"><a name="l01996"></a><span class="lineno"> 1996</span>&#160;</div>
<div class="line"><a name="l01997"></a><span class="lineno"> 1997</span>&#160;  assert(len &lt;= <a class="code" href="crypto_8h.html#ab96c8e0773a14d1ce1621eed1a78e2bd">DTLS_PSK_MAX_CLIENT_IDENTITY_LEN</a>);</div>
<div class="line"><a name="l01998"></a><span class="lineno"> 1998</span>&#160;  <span class="keywordflow">if</span> (len &gt; <a class="code" href="crypto_8h.html#ab96c8e0773a14d1ce1621eed1a78e2bd">DTLS_PSK_MAX_CLIENT_IDENTITY_LEN</a>) {</div>
<div class="line"><a name="l01999"></a><span class="lineno"> 1999</span>&#160;    <span class="comment">/* should never happen */</span></div>
<div class="line"><a name="l02000"></a><span class="lineno"> 2000</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;psk identity hint is too long\n&quot;</span>);</div>
<div class="line"><a name="l02001"></a><span class="lineno"> 2001</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l02002"></a><span class="lineno"> 2002</span>&#160;  }</div>
<div class="line"><a name="l02003"></a><span class="lineno"> 2003</span>&#160;</div>
<div class="line"><a name="l02004"></a><span class="lineno"> 2004</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, len);</div>
<div class="line"><a name="l02005"></a><span class="lineno"> 2005</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02006"></a><span class="lineno"> 2006</span>&#160;</div>
<div class="line"><a name="l02007"></a><span class="lineno"> 2007</span>&#160;  memcpy(p, psk_hint, len);</div>
<div class="line"><a name="l02008"></a><span class="lineno"> 2008</span>&#160;  p += len;</div>
<div class="line"><a name="l02009"></a><span class="lineno"> 2009</span>&#160;</div>
<div class="line"><a name="l02010"></a><span class="lineno"> 2010</span>&#160;  assert(p - buf &lt;= <span class="keyword">sizeof</span>(buf));</div>
<div class="line"><a name="l02011"></a><span class="lineno"> 2011</span>&#160;</div>
<div class="line"><a name="l02012"></a><span class="lineno"> 2012</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a>(ctx, peer, <a class="code" href="dtls_8h.html#aab327e17614cf2902c5fc6169466613f">DTLS_HT_SERVER_KEY_EXCHANGE</a>,</div>
<div class="line"><a name="l02013"></a><span class="lineno"> 2013</span>&#160;                 buf, p - buf);</div>
<div class="line"><a name="l02014"></a><span class="lineno"> 2014</span>&#160;}</div>
<div class="line"><a name="l02015"></a><span class="lineno"> 2015</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_PSK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02016"></a><span class="lineno"> 2016</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l02017"></a><span class="lineno"> 2017</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l02018"></a><span class="lineno"> 2018</span>&#160;<span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02019"></a><span class="lineno"><a class="line" href="dtls_8c.html#a51ab17e2a5ac1566ba4249b787bb98a3"> 2019</a></span>&#160;<a class="code" href="dtls_8c.html#a51ab17e2a5ac1566ba4249b787bb98a3">dtls_send_server_certificate_request</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer)</div>
<div class="line"><a name="l02020"></a><span class="lineno"> 2020</span>&#160;{</div>
<div class="line"><a name="l02021"></a><span class="lineno"> 2021</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[8];</div>
<div class="line"><a name="l02022"></a><span class="lineno"> 2022</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p;</div>
<div class="line"><a name="l02023"></a><span class="lineno"> 2023</span>&#160;</div>
<div class="line"><a name="l02024"></a><span class="lineno"> 2024</span>&#160;  <span class="comment">/* ServerHelloDone </span></div>
<div class="line"><a name="l02025"></a><span class="lineno"> 2025</span>&#160;<span class="comment">   *</span></div>
<div class="line"><a name="l02026"></a><span class="lineno"> 2026</span>&#160;<span class="comment">   * Start message construction at beginning of buffer. */</span></div>
<div class="line"><a name="l02027"></a><span class="lineno"> 2027</span>&#160;  p = buf;</div>
<div class="line"><a name="l02028"></a><span class="lineno"> 2028</span>&#160;</div>
<div class="line"><a name="l02029"></a><span class="lineno"> 2029</span>&#160;  <span class="comment">/* certificate_types */</span></div>
<div class="line"><a name="l02030"></a><span class="lineno"> 2030</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 1);</div>
<div class="line"><a name="l02031"></a><span class="lineno"> 2031</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02032"></a><span class="lineno"> 2032</span>&#160;</div>
<div class="line"><a name="l02033"></a><span class="lineno"> 2033</span>&#160;  <span class="comment">/* ecdsa_sign */</span></div>
<div class="line"><a name="l02034"></a><span class="lineno"> 2034</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#aaace8dce4341d910140609a96bb300db">TLS_CLIENT_CERTIFICATE_TYPE_ECDSA_SIGN</a>);</div>
<div class="line"><a name="l02035"></a><span class="lineno"> 2035</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02036"></a><span class="lineno"> 2036</span>&#160;</div>
<div class="line"><a name="l02037"></a><span class="lineno"> 2037</span>&#160;  <span class="comment">/* supported_signature_algorithms */</span></div>
<div class="line"><a name="l02038"></a><span class="lineno"> 2038</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, 2);</div>
<div class="line"><a name="l02039"></a><span class="lineno"> 2039</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02040"></a><span class="lineno"> 2040</span>&#160;</div>
<div class="line"><a name="l02041"></a><span class="lineno"> 2041</span>&#160;  <span class="comment">/* sha256 */</span></div>
<div class="line"><a name="l02042"></a><span class="lineno"> 2042</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#aa347771eab2eabd24c4b9311fa61c4c9">TLS_EXT_SIG_HASH_ALGO_SHA256</a>);</div>
<div class="line"><a name="l02043"></a><span class="lineno"> 2043</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02044"></a><span class="lineno"> 2044</span>&#160;</div>
<div class="line"><a name="l02045"></a><span class="lineno"> 2045</span>&#160;  <span class="comment">/* ecdsa */</span></div>
<div class="line"><a name="l02046"></a><span class="lineno"> 2046</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#af126227a026a7af436a4323db6d02ecc">TLS_EXT_SIG_HASH_ALGO_ECDSA</a>);</div>
<div class="line"><a name="l02047"></a><span class="lineno"> 2047</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02048"></a><span class="lineno"> 2048</span>&#160;</div>
<div class="line"><a name="l02049"></a><span class="lineno"> 2049</span>&#160;  <span class="comment">/* certificate_authoritiess */</span></div>
<div class="line"><a name="l02050"></a><span class="lineno"> 2050</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, 0);</div>
<div class="line"><a name="l02051"></a><span class="lineno"> 2051</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02052"></a><span class="lineno"> 2052</span>&#160;</div>
<div class="line"><a name="l02053"></a><span class="lineno"> 2053</span>&#160;  assert(p - buf &lt;= <span class="keyword">sizeof</span>(buf));</div>
<div class="line"><a name="l02054"></a><span class="lineno"> 2054</span>&#160;</div>
<div class="line"><a name="l02055"></a><span class="lineno"> 2055</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a>(ctx, peer, <a class="code" href="dtls_8h.html#a6f49d7b0a6e9190d71d51b1ee9ff3bd5">DTLS_HT_CERTIFICATE_REQUEST</a>,</div>
<div class="line"><a name="l02056"></a><span class="lineno"> 2056</span>&#160;                 buf, p - buf);</div>
<div class="line"><a name="l02057"></a><span class="lineno"> 2057</span>&#160;}</div>
<div class="line"><a name="l02058"></a><span class="lineno"> 2058</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02059"></a><span class="lineno"> 2059</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l02060"></a><span class="lineno"> 2060</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02061"></a><span class="lineno"><a class="line" href="dtls_8c.html#ad6ebff8518bb1d53ba888baf6898ee21"> 2061</a></span>&#160;<a class="code" href="dtls_8c.html#ad6ebff8518bb1d53ba888baf6898ee21">dtls_send_server_hello_done</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer)</div>
<div class="line"><a name="l02062"></a><span class="lineno"> 2062</span>&#160;{</div>
<div class="line"><a name="l02063"></a><span class="lineno"> 2063</span>&#160;</div>
<div class="line"><a name="l02064"></a><span class="lineno"> 2064</span>&#160;  <span class="comment">/* ServerHelloDone </span></div>
<div class="line"><a name="l02065"></a><span class="lineno"> 2065</span>&#160;<span class="comment">   *</span></div>
<div class="line"><a name="l02066"></a><span class="lineno"> 2066</span>&#160;<span class="comment">   * Start message construction at beginning of buffer. */</span></div>
<div class="line"><a name="l02067"></a><span class="lineno"> 2067</span>&#160;</div>
<div class="line"><a name="l02068"></a><span class="lineno"> 2068</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a>(ctx, peer, <a class="code" href="dtls_8h.html#a44399f223a3e1c8a8bf3fc638a06a4d7">DTLS_HT_SERVER_HELLO_DONE</a>,</div>
<div class="line"><a name="l02069"></a><span class="lineno"> 2069</span>&#160;                 NULL, 0);</div>
<div class="line"><a name="l02070"></a><span class="lineno"> 2070</span>&#160;}</div>
<div class="line"><a name="l02071"></a><span class="lineno"> 2071</span>&#160;</div>
<div class="line"><a name="l02072"></a><span class="lineno"> 2072</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02073"></a><span class="lineno"><a class="line" href="dtls_8c.html#afc54bc2ed42b4b65ad8f01abca9a8772"> 2073</a></span>&#160;<a class="code" href="dtls_8c.html#afc54bc2ed42b4b65ad8f01abca9a8772">dtls_send_server_hello_msgs</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer)</div>
<div class="line"><a name="l02074"></a><span class="lineno"> 2074</span>&#160;{</div>
<div class="line"><a name="l02075"></a><span class="lineno"> 2075</span>&#160;  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l02076"></a><span class="lineno"> 2076</span>&#160;</div>
<div class="line"><a name="l02077"></a><span class="lineno"> 2077</span>&#160;  res = <a class="code" href="dtls_8c.html#a7730a402edfca00c35bc1c7c09eb2fb9">dtls_send_server_hello</a>(ctx, peer);</div>
<div class="line"><a name="l02078"></a><span class="lineno"> 2078</span>&#160;</div>
<div class="line"><a name="l02079"></a><span class="lineno"> 2079</span>&#160;  <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02080"></a><span class="lineno"> 2080</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_server_hello: cannot prepare ServerHello record\n&quot;</span>);</div>
<div class="line"><a name="l02081"></a><span class="lineno"> 2081</span>&#160;    <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02082"></a><span class="lineno"> 2082</span>&#160;  }</div>
<div class="line"><a name="l02083"></a><span class="lineno"> 2083</span>&#160;</div>
<div class="line"><a name="l02084"></a><span class="lineno"> 2084</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l02085"></a><span class="lineno"> 2085</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>)) {</div>
<div class="line"><a name="l02086"></a><span class="lineno"> 2086</span>&#160;    <span class="keyword">const</span> <a class="code" href="structdtls__ecdsa__key__t.html">dtls_ecdsa_key_t</a> *ecdsa_key;</div>
<div class="line"><a name="l02087"></a><span class="lineno"> 2087</span>&#160;</div>
<div class="line"><a name="l02088"></a><span class="lineno"> 2088</span>&#160;    res = <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, get_ecdsa_key, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, &amp;ecdsa_key);</div>
<div class="line"><a name="l02089"></a><span class="lineno"> 2089</span>&#160;    <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02090"></a><span class="lineno"> 2090</span>&#160;      <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;no ecdsa certificate to send in certificate\n&quot;</span>);</div>
<div class="line"><a name="l02091"></a><span class="lineno"> 2091</span>&#160;      <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02092"></a><span class="lineno"> 2092</span>&#160;    }</div>
<div class="line"><a name="l02093"></a><span class="lineno"> 2093</span>&#160;</div>
<div class="line"><a name="l02094"></a><span class="lineno"> 2094</span>&#160;    res = <a class="code" href="dtls_8c.html#a6b92c487825aa888acc0b55f5adc0220">dtls_send_certificate_ecdsa</a>(ctx, peer, ecdsa_key);</div>
<div class="line"><a name="l02095"></a><span class="lineno"> 2095</span>&#160;</div>
<div class="line"><a name="l02096"></a><span class="lineno"> 2096</span>&#160;    <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02097"></a><span class="lineno"> 2097</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_server_hello: cannot prepare Certificate record\n&quot;</span>);</div>
<div class="line"><a name="l02098"></a><span class="lineno"> 2098</span>&#160;      <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02099"></a><span class="lineno"> 2099</span>&#160;    }</div>
<div class="line"><a name="l02100"></a><span class="lineno"> 2100</span>&#160;</div>
<div class="line"><a name="l02101"></a><span class="lineno"> 2101</span>&#160;    res = <a class="code" href="dtls_8c.html#a80275f06c14cbbc18095bc2f61022d15">dtls_send_server_key_exchange_ecdh</a>(ctx, peer, ecdsa_key);</div>
<div class="line"><a name="l02102"></a><span class="lineno"> 2102</span>&#160;</div>
<div class="line"><a name="l02103"></a><span class="lineno"> 2103</span>&#160;    <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02104"></a><span class="lineno"> 2104</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_server_hello: cannot prepare Server Key Exchange record\n&quot;</span>);</div>
<div class="line"><a name="l02105"></a><span class="lineno"> 2105</span>&#160;      <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02106"></a><span class="lineno"> 2106</span>&#160;    }</div>
<div class="line"><a name="l02107"></a><span class="lineno"> 2107</span>&#160;</div>
<div class="line"><a name="l02108"></a><span class="lineno"> 2108</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>) &amp;&amp;</div>
<div class="line"><a name="l02109"></a><span class="lineno"> 2109</span>&#160;    <a class="code" href="dtls_8c.html#a599f0d6e9134869e55b64c4f8720ebfa">is_ecdsa_client_auth_supported</a>(ctx)) {</div>
<div class="line"><a name="l02110"></a><span class="lineno"> 2110</span>&#160;      res = <a class="code" href="dtls_8c.html#a51ab17e2a5ac1566ba4249b787bb98a3">dtls_send_server_certificate_request</a>(ctx, peer);</div>
<div class="line"><a name="l02111"></a><span class="lineno"> 2111</span>&#160;</div>
<div class="line"><a name="l02112"></a><span class="lineno"> 2112</span>&#160;      <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02113"></a><span class="lineno"> 2113</span>&#160;        <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_server_hello: cannot prepare certificate Request record\n&quot;</span>);</div>
<div class="line"><a name="l02114"></a><span class="lineno"> 2114</span>&#160;        <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02115"></a><span class="lineno"> 2115</span>&#160;      }</div>
<div class="line"><a name="l02116"></a><span class="lineno"> 2116</span>&#160;    }</div>
<div class="line"><a name="l02117"></a><span class="lineno"> 2117</span>&#160;  }</div>
<div class="line"><a name="l02118"></a><span class="lineno"> 2118</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02119"></a><span class="lineno"> 2119</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l02120"></a><span class="lineno"> 2120</span>&#160;<span class="preprocessor">#ifdef DTLS_PSK</span></div>
<div class="line"><a name="l02121"></a><span class="lineno"> 2121</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8bb6e8bb947b943d2af4c1886a8e72ba">is_tls_psk_with_aes_128_ccm_8</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>)) {</div>
<div class="line"><a name="l02122"></a><span class="lineno"> 2122</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> psk_hint[<a class="code" href="crypto_8h.html#ab96c8e0773a14d1ce1621eed1a78e2bd">DTLS_PSK_MAX_CLIENT_IDENTITY_LEN</a>];</div>
<div class="line"><a name="l02123"></a><span class="lineno"> 2123</span>&#160;    <span class="keywordtype">int</span> len;</div>
<div class="line"><a name="l02124"></a><span class="lineno"> 2124</span>&#160;</div>
<div class="line"><a name="l02125"></a><span class="lineno"> 2125</span>&#160;    <span class="comment">/* The identity hint is optional, therefore we ignore the result</span></div>
<div class="line"><a name="l02126"></a><span class="lineno"> 2126</span>&#160;<span class="comment">     * and check psk only. */</span></div>
<div class="line"><a name="l02127"></a><span class="lineno"> 2127</span>&#160;    len = <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, get_psk_info, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, <a class="code" href="dtls_8h.html#a36eda3add5e2d12a3b5e2b6fe7038e01a53b5588e3c87ce19b1340baf193d130c">DTLS_PSK_HINT</a>,</div>
<div class="line"><a name="l02128"></a><span class="lineno"> 2128</span>&#160;           NULL, 0, psk_hint, <a class="code" href="crypto_8h.html#ab96c8e0773a14d1ce1621eed1a78e2bd">DTLS_PSK_MAX_CLIENT_IDENTITY_LEN</a>);</div>
<div class="line"><a name="l02129"></a><span class="lineno"> 2129</span>&#160;</div>
<div class="line"><a name="l02130"></a><span class="lineno"> 2130</span>&#160;    <span class="keywordflow">if</span> (len &lt; 0) {</div>
<div class="line"><a name="l02131"></a><span class="lineno"> 2131</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_server_hello: cannot create ServerKeyExchange\n&quot;</span>);</div>
<div class="line"><a name="l02132"></a><span class="lineno"> 2132</span>&#160;      <span class="keywordflow">return</span> len;</div>
<div class="line"><a name="l02133"></a><span class="lineno"> 2133</span>&#160;    }</div>
<div class="line"><a name="l02134"></a><span class="lineno"> 2134</span>&#160;</div>
<div class="line"><a name="l02135"></a><span class="lineno"> 2135</span>&#160;    <span class="keywordflow">if</span> (len &gt; 0) {</div>
<div class="line"><a name="l02136"></a><span class="lineno"> 2136</span>&#160;      res = <a class="code" href="dtls_8c.html#a00f6591bce49f6122dab9827c8774ba3">dtls_send_server_key_exchange_psk</a>(ctx, peer, psk_hint, (<span class="keywordtype">size_t</span>)len);</div>
<div class="line"><a name="l02137"></a><span class="lineno"> 2137</span>&#160;</div>
<div class="line"><a name="l02138"></a><span class="lineno"> 2138</span>&#160;      <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02139"></a><span class="lineno"> 2139</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_server_key_exchange_psk: cannot send server key exchange record\n&quot;</span>);</div>
<div class="line"><a name="l02140"></a><span class="lineno"> 2140</span>&#160;    <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02141"></a><span class="lineno"> 2141</span>&#160;      }</div>
<div class="line"><a name="l02142"></a><span class="lineno"> 2142</span>&#160;    }</div>
<div class="line"><a name="l02143"></a><span class="lineno"> 2143</span>&#160;  }</div>
<div class="line"><a name="l02144"></a><span class="lineno"> 2144</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_PSK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02145"></a><span class="lineno"> 2145</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l02146"></a><span class="lineno"> 2146</span>&#160;  res = <a class="code" href="dtls_8c.html#ad6ebff8518bb1d53ba888baf6898ee21">dtls_send_server_hello_done</a>(ctx, peer);</div>
<div class="line"><a name="l02147"></a><span class="lineno"> 2147</span>&#160;</div>
<div class="line"><a name="l02148"></a><span class="lineno"> 2148</span>&#160;  <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02149"></a><span class="lineno"> 2149</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_server_hello: cannot prepare ServerHelloDone record\n&quot;</span>);</div>
<div class="line"><a name="l02150"></a><span class="lineno"> 2150</span>&#160;    <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02151"></a><span class="lineno"> 2151</span>&#160;  }</div>
<div class="line"><a name="l02152"></a><span class="lineno"> 2152</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l02153"></a><span class="lineno"> 2153</span>&#160;}</div>
<div class="line"><a name="l02154"></a><span class="lineno"> 2154</span>&#160;</div>
<div class="line"><a name="l02155"></a><span class="lineno"> 2155</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> </div>
<div class="line"><a name="l02156"></a><span class="lineno"><a class="line" href="dtls_8c.html#a9cfb3c9e63f378d0d8e3d3d0c60537a5"> 2156</a></span>&#160;<a class="code" href="dtls_8c.html#a9cfb3c9e63f378d0d8e3d3d0c60537a5">dtls_send_ccs</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer) {</div>
<div class="line"><a name="l02157"></a><span class="lineno"> 2157</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[1] = {1};</div>
<div class="line"><a name="l02158"></a><span class="lineno"> 2158</span>&#160;</div>
<div class="line"><a name="l02159"></a><span class="lineno"> 2159</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#afdd0d094bfd136f65455e23fda087cd6">dtls_send</a>(ctx, peer, <a class="code" href="dtls_8h.html#a3114c327a12e3850e97c4cf8a0cc5c9d">DTLS_CT_CHANGE_CIPHER_SPEC</a>, buf, 1);</div>
<div class="line"><a name="l02160"></a><span class="lineno"> 2160</span>&#160;}</div>
<div class="line"><a name="l02161"></a><span class="lineno"> 2161</span>&#160;</div>
<div class="line"><a name="l02162"></a><span class="lineno"> 2162</span>&#160;    </div>
<div class="line"><a name="l02163"></a><span class="lineno"> 2163</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02164"></a><span class="lineno"><a class="line" href="dtls_8c.html#a12e4cab07baba9eae2a0182f4e0bf72d"> 2164</a></span>&#160;<a class="code" href="dtls_8c.html#a12e4cab07baba9eae2a0182f4e0bf72d">dtls_send_client_key_exchange</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer)</div>
<div class="line"><a name="l02165"></a><span class="lineno"> 2165</span>&#160;{</div>
<div class="line"><a name="l02166"></a><span class="lineno"> 2166</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[<a class="code" href="dtls_8c.html#a5ddccf12706c8d18d80b7759454ca164">DTLS_CKXEC_LENGTH</a>];</div>
<div class="line"><a name="l02167"></a><span class="lineno"> 2167</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p;</div>
<div class="line"><a name="l02168"></a><span class="lineno"> 2168</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *handshake = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l02169"></a><span class="lineno"> 2169</span>&#160;</div>
<div class="line"><a name="l02170"></a><span class="lineno"> 2170</span>&#160;  p = buf;</div>
<div class="line"><a name="l02171"></a><span class="lineno"> 2171</span>&#160;</div>
<div class="line"><a name="l02172"></a><span class="lineno"> 2172</span>&#160;  <span class="keywordflow">switch</span> (handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>) {</div>
<div class="line"><a name="l02173"></a><span class="lineno"> 2173</span>&#160;<span class="preprocessor">#ifdef DTLS_PSK</span></div>
<div class="line"><a name="l02174"></a><span class="lineno"> 2174</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">case</span> <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba39a3062f136db88f648ce514a591fac8">TLS_PSK_WITH_AES_128_CCM_8</a>: {</div>
<div class="line"><a name="l02175"></a><span class="lineno"> 2175</span>&#160;    <span class="keywordtype">int</span> len;</div>
<div class="line"><a name="l02176"></a><span class="lineno"> 2176</span>&#160;</div>
<div class="line"><a name="l02177"></a><span class="lineno"> 2177</span>&#160;    len = <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, get_psk_info, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, <a class="code" href="dtls_8h.html#a36eda3add5e2d12a3b5e2b6fe7038e01adb8cac45614b2bc4e66970b64043cfc2">DTLS_PSK_IDENTITY</a>,</div>
<div class="line"><a name="l02178"></a><span class="lineno"> 2178</span>&#160;           handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.identity, handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.id_length,</div>
<div class="line"><a name="l02179"></a><span class="lineno"> 2179</span>&#160;           buf + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>),</div>
<div class="line"><a name="l02180"></a><span class="lineno"> 2180</span>&#160;           <a class="code" href="debug_8c.html#ac6afabdc09a49a433ee19d8a9486056d">min</a>(<span class="keyword">sizeof</span>(buf) - <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>),</div>
<div class="line"><a name="l02181"></a><span class="lineno"> 2181</span>&#160;           <span class="keyword">sizeof</span>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.identity)));</div>
<div class="line"><a name="l02182"></a><span class="lineno"> 2182</span>&#160;    <span class="keywordflow">if</span> (len &lt; 0) {</div>
<div class="line"><a name="l02183"></a><span class="lineno"> 2183</span>&#160;      <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;no psk identity set in kx\n&quot;</span>);</div>
<div class="line"><a name="l02184"></a><span class="lineno"> 2184</span>&#160;      <span class="keywordflow">return</span> len;</div>
<div class="line"><a name="l02185"></a><span class="lineno"> 2185</span>&#160;    }</div>
<div class="line"><a name="l02186"></a><span class="lineno"> 2186</span>&#160;</div>
<div class="line"><a name="l02187"></a><span class="lineno"> 2187</span>&#160;    <span class="keywordflow">if</span> (len + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>) &gt; <a class="code" href="dtls_8c.html#a5ddccf12706c8d18d80b7759454ca164">DTLS_CKXEC_LENGTH</a>) {</div>
<div class="line"><a name="l02188"></a><span class="lineno"> 2188</span>&#160;      memset(&amp;handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk, 0, <span class="keyword">sizeof</span>(<a class="code" href="structdtls__handshake__parameters__psk__t.html">dtls_handshake_parameters_psk_t</a>));</div>
<div class="line"><a name="l02189"></a><span class="lineno"> 2189</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;the psk identity is too long\n&quot;</span>);</div>
<div class="line"><a name="l02190"></a><span class="lineno"> 2190</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l02191"></a><span class="lineno"> 2191</span>&#160;    }</div>
<div class="line"><a name="l02192"></a><span class="lineno"> 2192</span>&#160;    handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.id_length = (<span class="keywordtype">unsigned</span> int)len;</div>
<div class="line"><a name="l02193"></a><span class="lineno"> 2193</span>&#160;    memcpy(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.identity, p + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>), len);</div>
<div class="line"><a name="l02194"></a><span class="lineno"> 2194</span>&#160;</div>
<div class="line"><a name="l02195"></a><span class="lineno"> 2195</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.id_length);</div>
<div class="line"><a name="l02196"></a><span class="lineno"> 2196</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02197"></a><span class="lineno"> 2197</span>&#160;</div>
<div class="line"><a name="l02198"></a><span class="lineno"> 2198</span>&#160;    memcpy(p, handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.identity, handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.id_length);</div>
<div class="line"><a name="l02199"></a><span class="lineno"> 2199</span>&#160;    p += handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.id_length;</div>
<div class="line"><a name="l02200"></a><span class="lineno"> 2200</span>&#160;</div>
<div class="line"><a name="l02201"></a><span class="lineno"> 2201</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l02202"></a><span class="lineno"> 2202</span>&#160;  }</div>
<div class="line"><a name="l02203"></a><span class="lineno"> 2203</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_PSK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02204"></a><span class="lineno"> 2204</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l02205"></a><span class="lineno"> 2205</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">case</span> <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba197892e216f63ddbc91c2b006a2d4c1e">TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8</a>: {</div>
<div class="line"><a name="l02206"></a><span class="lineno"> 2206</span>&#160;    <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *ephemeral_pub_x;</div>
<div class="line"><a name="l02207"></a><span class="lineno"> 2207</span>&#160;    <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *ephemeral_pub_y;</div>
<div class="line"><a name="l02208"></a><span class="lineno"> 2208</span>&#160;</div>
<div class="line"><a name="l02209"></a><span class="lineno"> 2209</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 1 + 2 * <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>);</div>
<div class="line"><a name="l02210"></a><span class="lineno"> 2210</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02211"></a><span class="lineno"> 2211</span>&#160;</div>
<div class="line"><a name="l02212"></a><span class="lineno"> 2212</span>&#160;    <span class="comment">/* This should be an uncompressed point, but I do not have access to the spec. */</span></div>
<div class="line"><a name="l02213"></a><span class="lineno"> 2213</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 4);</div>
<div class="line"><a name="l02214"></a><span class="lineno"> 2214</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02215"></a><span class="lineno"> 2215</span>&#160;</div>
<div class="line"><a name="l02216"></a><span class="lineno"> 2216</span>&#160;    ephemeral_pub_x = p;</div>
<div class="line"><a name="l02217"></a><span class="lineno"> 2217</span>&#160;    p += <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>;</div>
<div class="line"><a name="l02218"></a><span class="lineno"> 2218</span>&#160;    ephemeral_pub_y = p;</div>
<div class="line"><a name="l02219"></a><span class="lineno"> 2219</span>&#160;    p += <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>;</div>
<div class="line"><a name="l02220"></a><span class="lineno"> 2220</span>&#160;</div>
<div class="line"><a name="l02221"></a><span class="lineno"> 2221</span>&#160;    <a class="code" href="crypto_8c.html#a982fc9e78cd10d9323756b15b72c7970">dtls_ecdsa_generate_key</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.own_eph_priv,</div>
<div class="line"><a name="l02222"></a><span class="lineno"> 2222</span>&#160;                    ephemeral_pub_x, ephemeral_pub_y,</div>
<div class="line"><a name="l02223"></a><span class="lineno"> 2223</span>&#160;                    <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>);</div>
<div class="line"><a name="l02224"></a><span class="lineno"> 2224</span>&#160;</div>
<div class="line"><a name="l02225"></a><span class="lineno"> 2225</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l02226"></a><span class="lineno"> 2226</span>&#160;  }</div>
<div class="line"><a name="l02227"></a><span class="lineno"> 2227</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02228"></a><span class="lineno"> 2228</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l02229"></a><span class="lineno"> 2229</span>&#160;    <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;cipher not supported\n&quot;</span>);</div>
<div class="line"><a name="l02230"></a><span class="lineno"> 2230</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l02231"></a><span class="lineno"> 2231</span>&#160;  }</div>
<div class="line"><a name="l02232"></a><span class="lineno"> 2232</span>&#160;</div>
<div class="line"><a name="l02233"></a><span class="lineno"> 2233</span>&#160;  assert(p - buf &lt;= <span class="keyword">sizeof</span>(buf));</div>
<div class="line"><a name="l02234"></a><span class="lineno"> 2234</span>&#160;</div>
<div class="line"><a name="l02235"></a><span class="lineno"> 2235</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a>(ctx, peer, <a class="code" href="dtls_8h.html#a577885c74492a460729a451f33a894c4">DTLS_HT_CLIENT_KEY_EXCHANGE</a>,</div>
<div class="line"><a name="l02236"></a><span class="lineno"> 2236</span>&#160;                 buf, p - buf);</div>
<div class="line"><a name="l02237"></a><span class="lineno"> 2237</span>&#160;}</div>
<div class="line"><a name="l02238"></a><span class="lineno"> 2238</span>&#160;</div>
<div class="line"><a name="l02239"></a><span class="lineno"> 2239</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l02240"></a><span class="lineno"> 2240</span>&#160;<span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02241"></a><span class="lineno"><a class="line" href="dtls_8c.html#adfe6fc0d0d66e9ffaef25c2c126b1c34"> 2241</a></span>&#160;<a class="code" href="dtls_8c.html#adfe6fc0d0d66e9ffaef25c2c126b1c34">dtls_send_certificate_verify_ecdh</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l02242"></a><span class="lineno"> 2242</span>&#160;                   <span class="keyword">const</span> <a class="code" href="structdtls__ecdsa__key__t.html">dtls_ecdsa_key_t</a> *key)</div>
<div class="line"><a name="l02243"></a><span class="lineno"> 2243</span>&#160;{</div>
<div class="line"><a name="l02244"></a><span class="lineno"> 2244</span>&#160;  <span class="comment">/* The ASN.1 Integer representation of an 32 byte unsigned int could be</span></div>
<div class="line"><a name="l02245"></a><span class="lineno"> 2245</span>&#160;<span class="comment">   * 33 bytes long add space for that */</span></div>
<div class="line"><a name="l02246"></a><span class="lineno"> 2246</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[<a class="code" href="dtls_8c.html#a0bcce8fa79dc3187eb5f1655798ac816">DTLS_CV_LENGTH</a> + 2];</div>
<div class="line"><a name="l02247"></a><span class="lineno"> 2247</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p;</div>
<div class="line"><a name="l02248"></a><span class="lineno"> 2248</span>&#160;  uint32_t point_r[9];</div>
<div class="line"><a name="l02249"></a><span class="lineno"> 2249</span>&#160;  uint32_t point_s[9];</div>
<div class="line"><a name="l02250"></a><span class="lineno"> 2250</span>&#160;  <a class="code" href="hmac_8h.html#abb19650a510c73117da0e9b88d68f159">dtls_hash_ctx</a> hs_hash;</div>
<div class="line"><a name="l02251"></a><span class="lineno"> 2251</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> sha256hash[<a class="code" href="group__HMAC.html#ga060019cf2dab9903d58118fe1abe7018">DTLS_HMAC_DIGEST_SIZE</a>];</div>
<div class="line"><a name="l02252"></a><span class="lineno"> 2252</span>&#160;</div>
<div class="line"><a name="l02253"></a><span class="lineno"> 2253</span>&#160;  <span class="comment">/* ServerKeyExchange </span></div>
<div class="line"><a name="l02254"></a><span class="lineno"> 2254</span>&#160;<span class="comment">   *</span></div>
<div class="line"><a name="l02255"></a><span class="lineno"> 2255</span>&#160;<span class="comment">   * Start message construction at beginning of buffer. */</span></div>
<div class="line"><a name="l02256"></a><span class="lineno"> 2256</span>&#160;  p = buf;</div>
<div class="line"><a name="l02257"></a><span class="lineno"> 2257</span>&#160;</div>
<div class="line"><a name="l02258"></a><span class="lineno"> 2258</span>&#160;  <a class="code" href="dtls_8c.html#a22ab7a79391c2204337237949d69dad8">copy_hs_hash</a>(peer, &amp;hs_hash);</div>
<div class="line"><a name="l02259"></a><span class="lineno"> 2259</span>&#160;</div>
<div class="line"><a name="l02260"></a><span class="lineno"> 2260</span>&#160;  <a class="code" href="hmac_8h.html#a96801bbb62f4c9c872b22cd8e438e51e">dtls_hash_finalize</a>(sha256hash, &amp;hs_hash);</div>
<div class="line"><a name="l02261"></a><span class="lineno"> 2261</span>&#160;</div>
<div class="line"><a name="l02262"></a><span class="lineno"> 2262</span>&#160;  <span class="comment">/* sign the ephemeral and its paramaters */</span></div>
<div class="line"><a name="l02263"></a><span class="lineno"> 2263</span>&#160;  <a class="code" href="crypto_8c.html#a49f03039780664684d110d83a228b163">dtls_ecdsa_create_sig_hash</a>(key-&gt;<a class="code" href="structdtls__ecdsa__key__t.html#a91769609f44590f193d726187ab366de">priv_key</a>, <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>,</div>
<div class="line"><a name="l02264"></a><span class="lineno"> 2264</span>&#160;                 sha256hash, <span class="keyword">sizeof</span>(sha256hash),</div>
<div class="line"><a name="l02265"></a><span class="lineno"> 2265</span>&#160;                 point_r, point_s);</div>
<div class="line"><a name="l02266"></a><span class="lineno"> 2266</span>&#160;</div>
<div class="line"><a name="l02267"></a><span class="lineno"> 2267</span>&#160;  p = <a class="code" href="dtls_8c.html#a7d7af4d19c7abef4583c1667ec449a5d">dtls_add_ecdsa_signature_elem</a>(p, point_r, point_s);</div>
<div class="line"><a name="l02268"></a><span class="lineno"> 2268</span>&#160;</div>
<div class="line"><a name="l02269"></a><span class="lineno"> 2269</span>&#160;  assert(p - buf &lt;= <span class="keyword">sizeof</span>(buf));</div>
<div class="line"><a name="l02270"></a><span class="lineno"> 2270</span>&#160;</div>
<div class="line"><a name="l02271"></a><span class="lineno"> 2271</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a>(ctx, peer, <a class="code" href="dtls_8h.html#a9abc650dd8339a227ddd165ede9350d0">DTLS_HT_CERTIFICATE_VERIFY</a>,</div>
<div class="line"><a name="l02272"></a><span class="lineno"> 2272</span>&#160;                 buf, p - buf);</div>
<div class="line"><a name="l02273"></a><span class="lineno"> 2273</span>&#160;}</div>
<div class="line"><a name="l02274"></a><span class="lineno"> 2274</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02275"></a><span class="lineno"> 2275</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l02276"></a><span class="lineno"> 2276</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02277"></a><span class="lineno"><a class="line" href="dtls_8c.html#a112e0d83a0e576b5d22df60241900a67"> 2277</a></span>&#160;<a class="code" href="dtls_8c.html#a112e0d83a0e576b5d22df60241900a67">dtls_send_finished</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l02278"></a><span class="lineno"> 2278</span>&#160;           <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *label, <span class="keywordtype">size_t</span> labellen)</div>
<div class="line"><a name="l02279"></a><span class="lineno"> 2279</span>&#160;{</div>
<div class="line"><a name="l02280"></a><span class="lineno"> 2280</span>&#160;  <span class="keywordtype">int</span> length;</div>
<div class="line"><a name="l02281"></a><span class="lineno"> 2281</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> hash[<a class="code" href="group__HMAC.html#ga3e84ddbef6bf0084252e16e6c547e332">DTLS_HMAC_MAX</a>];</div>
<div class="line"><a name="l02282"></a><span class="lineno"> 2282</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[<a class="code" href="dtls_8c.html#a21644ea2de742395df1e3b3281ba4f63">DTLS_FIN_LENGTH</a>];</div>
<div class="line"><a name="l02283"></a><span class="lineno"> 2283</span>&#160;  <a class="code" href="hmac_8h.html#abb19650a510c73117da0e9b88d68f159">dtls_hash_ctx</a> hs_hash;</div>
<div class="line"><a name="l02284"></a><span class="lineno"> 2284</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p = buf;</div>
<div class="line"><a name="l02285"></a><span class="lineno"> 2285</span>&#160;</div>
<div class="line"><a name="l02286"></a><span class="lineno"> 2286</span>&#160;  <a class="code" href="dtls_8c.html#a22ab7a79391c2204337237949d69dad8">copy_hs_hash</a>(peer, &amp;hs_hash);</div>
<div class="line"><a name="l02287"></a><span class="lineno"> 2287</span>&#160;</div>
<div class="line"><a name="l02288"></a><span class="lineno"> 2288</span>&#160;  length = <a class="code" href="hmac_8h.html#a96801bbb62f4c9c872b22cd8e438e51e">dtls_hash_finalize</a>(hash, &amp;hs_hash);</div>
<div class="line"><a name="l02289"></a><span class="lineno"> 2289</span>&#160;</div>
<div class="line"><a name="l02290"></a><span class="lineno"> 2290</span>&#160;  <a class="code" href="crypto_8c.html#a5e47576e502b5a6255f1b489a4915512">dtls_prf</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a21ba88c7b062772beb75c5570d257898">master_secret</a>,</div>
<div class="line"><a name="l02291"></a><span class="lineno"> 2291</span>&#160;       <a class="code" href="crypto_8h.html#a2648582ddf4c82abc01d8388bd3f15db">DTLS_MASTER_SECRET_LENGTH</a>,</div>
<div class="line"><a name="l02292"></a><span class="lineno"> 2292</span>&#160;       label, labellen,</div>
<div class="line"><a name="l02293"></a><span class="lineno"> 2293</span>&#160;       <a class="code" href="dtls_8c.html#abac8adda40bcb694e059e38f6ac115f9">PRF_LABEL</a>(finished), <a class="code" href="dtls_8c.html#a83b260e812e69f1dae18497d167770a9">PRF_LABEL_SIZE</a>(finished), </div>
<div class="line"><a name="l02294"></a><span class="lineno"> 2294</span>&#160;       hash, length,</div>
<div class="line"><a name="l02295"></a><span class="lineno"> 2295</span>&#160;       p, <a class="code" href="dtls_8c.html#a21644ea2de742395df1e3b3281ba4f63">DTLS_FIN_LENGTH</a>);</div>
<div class="line"><a name="l02296"></a><span class="lineno"> 2296</span>&#160;</div>
<div class="line"><a name="l02297"></a><span class="lineno"> 2297</span>&#160;  <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;server finished MAC&quot;</span>, p, <a class="code" href="dtls_8c.html#a21644ea2de742395df1e3b3281ba4f63">DTLS_FIN_LENGTH</a>);</div>
<div class="line"><a name="l02298"></a><span class="lineno"> 2298</span>&#160;</div>
<div class="line"><a name="l02299"></a><span class="lineno"> 2299</span>&#160;  p += <a class="code" href="dtls_8c.html#a21644ea2de742395df1e3b3281ba4f63">DTLS_FIN_LENGTH</a>;</div>
<div class="line"><a name="l02300"></a><span class="lineno"> 2300</span>&#160;</div>
<div class="line"><a name="l02301"></a><span class="lineno"> 2301</span>&#160;  assert(p - buf &lt;= <span class="keyword">sizeof</span>(buf));</div>
<div class="line"><a name="l02302"></a><span class="lineno"> 2302</span>&#160;</div>
<div class="line"><a name="l02303"></a><span class="lineno"> 2303</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a>(ctx, peer, <a class="code" href="dtls_8h.html#a16b49d03e041d43b60e1b7bacf35daad">DTLS_HT_FINISHED</a>,</div>
<div class="line"><a name="l02304"></a><span class="lineno"> 2304</span>&#160;                 buf, p - buf);</div>
<div class="line"><a name="l02305"></a><span class="lineno"> 2305</span>&#160;}</div>
<div class="line"><a name="l02306"></a><span class="lineno"> 2306</span>&#160;</div>
<div class="line"><a name="l02307"></a><span class="lineno"> 2307</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02308"></a><span class="lineno"><a class="line" href="dtls_8c.html#aecd3ffe8bf8a3970d3e091ce8e7c6476"> 2308</a></span>&#160;<a class="code" href="dtls_8c.html#aecd3ffe8bf8a3970d3e091ce8e7c6476">dtls_send_client_hello</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l02309"></a><span class="lineno"> 2309</span>&#160;                       <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> cookie[], <span class="keywordtype">size_t</span> cookie_length) {</div>
<div class="line"><a name="l02310"></a><span class="lineno"> 2310</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> buf[<a class="code" href="dtls_8c.html#aa5a4609da11d9496490853de9c2bf6fa">DTLS_CH_LENGTH_MAX</a>];</div>
<div class="line"><a name="l02311"></a><span class="lineno"> 2311</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *p = buf;</div>
<div class="line"><a name="l02312"></a><span class="lineno"> 2312</span>&#160;  uint8_t cipher_size;</div>
<div class="line"><a name="l02313"></a><span class="lineno"> 2313</span>&#160;  uint8_t extension_size;</div>
<div class="line"><a name="l02314"></a><span class="lineno"> 2314</span>&#160;  <span class="keywordtype">int</span> psk;</div>
<div class="line"><a name="l02315"></a><span class="lineno"> 2315</span>&#160;  <span class="keywordtype">int</span> ecdsa;</div>
<div class="line"><a name="l02316"></a><span class="lineno"> 2316</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *handshake = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l02317"></a><span class="lineno"> 2317</span>&#160;  <a class="code" href="group__clock.html#gaded617551180951f4841969e396a8012">dtls_tick_t</a> now;</div>
<div class="line"><a name="l02318"></a><span class="lineno"> 2318</span>&#160;</div>
<div class="line"><a name="l02319"></a><span class="lineno"> 2319</span>&#160;  psk = <a class="code" href="dtls_8c.html#a3bbccb275cb23e84c0a148a157955770">is_psk_supported</a>(ctx);</div>
<div class="line"><a name="l02320"></a><span class="lineno"> 2320</span>&#160;  ecdsa = <a class="code" href="dtls_8c.html#abb41f4bb9b8e4218ef5115ce70ebdc21">is_ecdsa_supported</a>(ctx, 1);</div>
<div class="line"><a name="l02321"></a><span class="lineno"> 2321</span>&#160;</div>
<div class="line"><a name="l02322"></a><span class="lineno"> 2322</span>&#160;  cipher_size = 2 + ((ecdsa) ? 2 : 0) + ((psk) ? 2 : 0);</div>
<div class="line"><a name="l02323"></a><span class="lineno"> 2323</span>&#160;  extension_size = (ecdsa) ? 2 + 6 + 6 + 8 + 6: 0;</div>
<div class="line"><a name="l02324"></a><span class="lineno"> 2324</span>&#160;</div>
<div class="line"><a name="l02325"></a><span class="lineno"> 2325</span>&#160;  <span class="keywordflow">if</span> (cipher_size == 0) {</div>
<div class="line"><a name="l02326"></a><span class="lineno"> 2326</span>&#160;    <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;no cipher callbacks implemented\n&quot;</span>);</div>
<div class="line"><a name="l02327"></a><span class="lineno"> 2327</span>&#160;  }</div>
<div class="line"><a name="l02328"></a><span class="lineno"> 2328</span>&#160;</div>
<div class="line"><a name="l02329"></a><span class="lineno"> 2329</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="dtls_8h.html#af0c44db3bf3a6a52e9ed271218daeaa6">DTLS_VERSION</a>);</div>
<div class="line"><a name="l02330"></a><span class="lineno"> 2330</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02331"></a><span class="lineno"> 2331</span>&#160;</div>
<div class="line"><a name="l02332"></a><span class="lineno"> 2332</span>&#160;  <span class="keywordflow">if</span> (cookie_length &gt; <a class="code" href="dtls_8c.html#abd652cf0e4512727591d3ec8ca066ace">DTLS_COOKIE_LENGTH_MAX</a>) {</div>
<div class="line"><a name="l02333"></a><span class="lineno"> 2333</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;the cookie is too long\n&quot;</span>);</div>
<div class="line"><a name="l02334"></a><span class="lineno"> 2334</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l02335"></a><span class="lineno"> 2335</span>&#160;  }</div>
<div class="line"><a name="l02336"></a><span class="lineno"> 2336</span>&#160;</div>
<div class="line"><a name="l02337"></a><span class="lineno"> 2337</span>&#160;  <span class="keywordflow">if</span> (cookie_length == 0) {</div>
<div class="line"><a name="l02338"></a><span class="lineno"> 2338</span>&#160;    <span class="comment">/* Set client random: First 4 bytes are the client&#39;s Unix timestamp,</span></div>
<div class="line"><a name="l02339"></a><span class="lineno"> 2339</span>&#160;<span class="comment">     * followed by 28 bytes of generate random data. */</span></div>
<div class="line"><a name="l02340"></a><span class="lineno"> 2340</span>&#160;    <a class="code" href="group__clock.html#ga1834985745ba5d3dd03f7e7498e3a304">dtls_ticks</a>(&amp;now);</div>
<div class="line"><a name="l02341"></a><span class="lineno"> 2341</span>&#160;    <a class="code" href="numeric_8h.html#a6914ee523b27539f4e441bede8c072b4">dtls_int_to_uint32</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.client, now / <a class="code" href="group__clock.html#gae3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a>);</div>
<div class="line"><a name="l02342"></a><span class="lineno"> 2342</span>&#160;    <a class="code" href="group__prng.html#ga3f4036a1abfcec552ab583a2dc37be6c">dtls_prng</a>(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.client + <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#ab27072920285996a3e16d2e5e3d366be">uint32</a>),</div>
<div class="line"><a name="l02343"></a><span class="lineno"> 2343</span>&#160;         <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a> - <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#ab27072920285996a3e16d2e5e3d366be">uint32</a>));</div>
<div class="line"><a name="l02344"></a><span class="lineno"> 2344</span>&#160;  }</div>
<div class="line"><a name="l02345"></a><span class="lineno"> 2345</span>&#160;  <span class="comment">/* we must use the same Client Random as for the previous request */</span></div>
<div class="line"><a name="l02346"></a><span class="lineno"> 2346</span>&#160;  memcpy(p, handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.client, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>);</div>
<div class="line"><a name="l02347"></a><span class="lineno"> 2347</span>&#160;  p += <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>;</div>
<div class="line"><a name="l02348"></a><span class="lineno"> 2348</span>&#160;</div>
<div class="line"><a name="l02349"></a><span class="lineno"> 2349</span>&#160;  <span class="comment">/* session id (length 0) */</span></div>
<div class="line"><a name="l02350"></a><span class="lineno"> 2350</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 0);</div>
<div class="line"><a name="l02351"></a><span class="lineno"> 2351</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02352"></a><span class="lineno"> 2352</span>&#160;</div>
<div class="line"><a name="l02353"></a><span class="lineno"> 2353</span>&#160;  <span class="comment">/* cookie */</span></div>
<div class="line"><a name="l02354"></a><span class="lineno"> 2354</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, cookie_length);</div>
<div class="line"><a name="l02355"></a><span class="lineno"> 2355</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02356"></a><span class="lineno"> 2356</span>&#160;  <span class="keywordflow">if</span> (cookie_length != 0) {</div>
<div class="line"><a name="l02357"></a><span class="lineno"> 2357</span>&#160;    memcpy(p, cookie, cookie_length);</div>
<div class="line"><a name="l02358"></a><span class="lineno"> 2358</span>&#160;    p += cookie_length;</div>
<div class="line"><a name="l02359"></a><span class="lineno"> 2359</span>&#160;  }</div>
<div class="line"><a name="l02360"></a><span class="lineno"> 2360</span>&#160;</div>
<div class="line"><a name="l02361"></a><span class="lineno"> 2361</span>&#160;  <span class="comment">/* add known cipher(s) */</span></div>
<div class="line"><a name="l02362"></a><span class="lineno"> 2362</span>&#160;  <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, cipher_size - 2);</div>
<div class="line"><a name="l02363"></a><span class="lineno"> 2363</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02364"></a><span class="lineno"> 2364</span>&#160;</div>
<div class="line"><a name="l02365"></a><span class="lineno"> 2365</span>&#160;  <span class="keywordflow">if</span> (ecdsa) {</div>
<div class="line"><a name="l02366"></a><span class="lineno"> 2366</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba197892e216f63ddbc91c2b006a2d4c1e">TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8</a>);</div>
<div class="line"><a name="l02367"></a><span class="lineno"> 2367</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02368"></a><span class="lineno"> 2368</span>&#160;  }</div>
<div class="line"><a name="l02369"></a><span class="lineno"> 2369</span>&#160;  <span class="keywordflow">if</span> (psk) {</div>
<div class="line"><a name="l02370"></a><span class="lineno"> 2370</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba39a3062f136db88f648ce514a591fac8">TLS_PSK_WITH_AES_128_CCM_8</a>);</div>
<div class="line"><a name="l02371"></a><span class="lineno"> 2371</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02372"></a><span class="lineno"> 2372</span>&#160;  }</div>
<div class="line"><a name="l02373"></a><span class="lineno"> 2373</span>&#160;</div>
<div class="line"><a name="l02374"></a><span class="lineno"> 2374</span>&#160;  <span class="comment">/* compression method */</span></div>
<div class="line"><a name="l02375"></a><span class="lineno"> 2375</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 1);</div>
<div class="line"><a name="l02376"></a><span class="lineno"> 2376</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02377"></a><span class="lineno"> 2377</span>&#160;</div>
<div class="line"><a name="l02378"></a><span class="lineno"> 2378</span>&#160;  <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2ac5b79ee16e8c0e46873fa63fdb1ab9ca">TLS_COMPRESSION_NULL</a>);</div>
<div class="line"><a name="l02379"></a><span class="lineno"> 2379</span>&#160;  p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02380"></a><span class="lineno"> 2380</span>&#160;</div>
<div class="line"><a name="l02381"></a><span class="lineno"> 2381</span>&#160;  <span class="keywordflow">if</span> (extension_size) {</div>
<div class="line"><a name="l02382"></a><span class="lineno"> 2382</span>&#160;    <span class="comment">/* length of the extensions */</span></div>
<div class="line"><a name="l02383"></a><span class="lineno"> 2383</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, extension_size - 2);</div>
<div class="line"><a name="l02384"></a><span class="lineno"> 2384</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02385"></a><span class="lineno"> 2385</span>&#160;  }</div>
<div class="line"><a name="l02386"></a><span class="lineno"> 2386</span>&#160;</div>
<div class="line"><a name="l02387"></a><span class="lineno"> 2387</span>&#160;  <span class="keywordflow">if</span> (ecdsa) {</div>
<div class="line"><a name="l02388"></a><span class="lineno"> 2388</span>&#160;    <span class="comment">/* client certificate type extension */</span></div>
<div class="line"><a name="l02389"></a><span class="lineno"> 2389</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#a0074adc0b2543a913a597e510caf27b0">TLS_EXT_CLIENT_CERTIFICATE_TYPE</a>);</div>
<div class="line"><a name="l02390"></a><span class="lineno"> 2390</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02391"></a><span class="lineno"> 2391</span>&#160;</div>
<div class="line"><a name="l02392"></a><span class="lineno"> 2392</span>&#160;    <span class="comment">/* length of this extension type */</span></div>
<div class="line"><a name="l02393"></a><span class="lineno"> 2393</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, 2);</div>
<div class="line"><a name="l02394"></a><span class="lineno"> 2394</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02395"></a><span class="lineno"> 2395</span>&#160;</div>
<div class="line"><a name="l02396"></a><span class="lineno"> 2396</span>&#160;    <span class="comment">/* length of the list */</span></div>
<div class="line"><a name="l02397"></a><span class="lineno"> 2397</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 1);</div>
<div class="line"><a name="l02398"></a><span class="lineno"> 2398</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02399"></a><span class="lineno"> 2399</span>&#160;</div>
<div class="line"><a name="l02400"></a><span class="lineno"> 2400</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#af36d51830256b7d1bf4dbaa8590c19e4">TLS_CERT_TYPE_RAW_PUBLIC_KEY</a>);</div>
<div class="line"><a name="l02401"></a><span class="lineno"> 2401</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02402"></a><span class="lineno"> 2402</span>&#160;</div>
<div class="line"><a name="l02403"></a><span class="lineno"> 2403</span>&#160;    <span class="comment">/* client certificate type extension */</span></div>
<div class="line"><a name="l02404"></a><span class="lineno"> 2404</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#ad465b86d1841ddd6c2209ff304895a95">TLS_EXT_SERVER_CERTIFICATE_TYPE</a>);</div>
<div class="line"><a name="l02405"></a><span class="lineno"> 2405</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02406"></a><span class="lineno"> 2406</span>&#160;</div>
<div class="line"><a name="l02407"></a><span class="lineno"> 2407</span>&#160;    <span class="comment">/* length of this extension type */</span></div>
<div class="line"><a name="l02408"></a><span class="lineno"> 2408</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, 2);</div>
<div class="line"><a name="l02409"></a><span class="lineno"> 2409</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02410"></a><span class="lineno"> 2410</span>&#160;</div>
<div class="line"><a name="l02411"></a><span class="lineno"> 2411</span>&#160;    <span class="comment">/* length of the list */</span></div>
<div class="line"><a name="l02412"></a><span class="lineno"> 2412</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 1);</div>
<div class="line"><a name="l02413"></a><span class="lineno"> 2413</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02414"></a><span class="lineno"> 2414</span>&#160;</div>
<div class="line"><a name="l02415"></a><span class="lineno"> 2415</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#af36d51830256b7d1bf4dbaa8590c19e4">TLS_CERT_TYPE_RAW_PUBLIC_KEY</a>);</div>
<div class="line"><a name="l02416"></a><span class="lineno"> 2416</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02417"></a><span class="lineno"> 2417</span>&#160;</div>
<div class="line"><a name="l02418"></a><span class="lineno"> 2418</span>&#160;    <span class="comment">/* elliptic_curves */</span></div>
<div class="line"><a name="l02419"></a><span class="lineno"> 2419</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#a7e080d630a40510f655bf6982c555063">TLS_EXT_ELLIPTIC_CURVES</a>);</div>
<div class="line"><a name="l02420"></a><span class="lineno"> 2420</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02421"></a><span class="lineno"> 2421</span>&#160;</div>
<div class="line"><a name="l02422"></a><span class="lineno"> 2422</span>&#160;    <span class="comment">/* length of this extension type */</span></div>
<div class="line"><a name="l02423"></a><span class="lineno"> 2423</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, 4);</div>
<div class="line"><a name="l02424"></a><span class="lineno"> 2424</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02425"></a><span class="lineno"> 2425</span>&#160;</div>
<div class="line"><a name="l02426"></a><span class="lineno"> 2426</span>&#160;    <span class="comment">/* length of the list */</span></div>
<div class="line"><a name="l02427"></a><span class="lineno"> 2427</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, 2);</div>
<div class="line"><a name="l02428"></a><span class="lineno"> 2428</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02429"></a><span class="lineno"> 2429</span>&#160;</div>
<div class="line"><a name="l02430"></a><span class="lineno"> 2430</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#a8095691f33c0ce6b22d205640ccc9417">TLS_EXT_ELLIPTIC_CURVES_SECP256R1</a>);</div>
<div class="line"><a name="l02431"></a><span class="lineno"> 2431</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02432"></a><span class="lineno"> 2432</span>&#160;</div>
<div class="line"><a name="l02433"></a><span class="lineno"> 2433</span>&#160;    <span class="comment">/* ec_point_formats */</span></div>
<div class="line"><a name="l02434"></a><span class="lineno"> 2434</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, <a class="code" href="global_8h.html#a5d17863db920927ef8160547541b58e3">TLS_EXT_EC_POINT_FORMATS</a>);</div>
<div class="line"><a name="l02435"></a><span class="lineno"> 2435</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02436"></a><span class="lineno"> 2436</span>&#160;</div>
<div class="line"><a name="l02437"></a><span class="lineno"> 2437</span>&#160;    <span class="comment">/* length of this extension type */</span></div>
<div class="line"><a name="l02438"></a><span class="lineno"> 2438</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(p, 2);</div>
<div class="line"><a name="l02439"></a><span class="lineno"> 2439</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02440"></a><span class="lineno"> 2440</span>&#160;</div>
<div class="line"><a name="l02441"></a><span class="lineno"> 2441</span>&#160;    <span class="comment">/* number of supported formats */</span></div>
<div class="line"><a name="l02442"></a><span class="lineno"> 2442</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, 1);</div>
<div class="line"><a name="l02443"></a><span class="lineno"> 2443</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02444"></a><span class="lineno"> 2444</span>&#160;</div>
<div class="line"><a name="l02445"></a><span class="lineno"> 2445</span>&#160;    <a class="code" href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a>(p, <a class="code" href="global_8h.html#af086ed2d0aea096be56bf7e46f8f72a6">TLS_EXT_EC_POINT_FORMATS_UNCOMPRESSED</a>);</div>
<div class="line"><a name="l02446"></a><span class="lineno"> 2446</span>&#160;    p += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02447"></a><span class="lineno"> 2447</span>&#160;  }</div>
<div class="line"><a name="l02448"></a><span class="lineno"> 2448</span>&#160;</div>
<div class="line"><a name="l02449"></a><span class="lineno"> 2449</span>&#160;  assert(p - buf &lt;= <span class="keyword">sizeof</span>(buf));</div>
<div class="line"><a name="l02450"></a><span class="lineno"> 2450</span>&#160;</div>
<div class="line"><a name="l02451"></a><span class="lineno"> 2451</span>&#160;  <span class="keywordflow">if</span> (cookie_length != 0)</div>
<div class="line"><a name="l02452"></a><span class="lineno"> 2452</span>&#160;    <a class="code" href="dtls_8c.html#a82181208ec1e9f42896f0606e0036c1d">clear_hs_hash</a>(peer);</div>
<div class="line"><a name="l02453"></a><span class="lineno"> 2453</span>&#160;</div>
<div class="line"><a name="l02454"></a><span class="lineno"> 2454</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a4f06884f659f6a5120be7e0b86d29880">dtls_send_handshake_msg_hash</a>(ctx, peer, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>,</div>
<div class="line"><a name="l02455"></a><span class="lineno"> 2455</span>&#160;                      <a class="code" href="dtls_8h.html#a25f0afef67a1fd8d9e3e61074d11e2f5">DTLS_HT_CLIENT_HELLO</a>,</div>
<div class="line"><a name="l02456"></a><span class="lineno"> 2456</span>&#160;                      buf, p - buf, cookie_length != 0);</div>
<div class="line"><a name="l02457"></a><span class="lineno"> 2457</span>&#160;}</div>
<div class="line"><a name="l02458"></a><span class="lineno"> 2458</span>&#160;</div>
<div class="line"><a name="l02459"></a><span class="lineno"> 2459</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02460"></a><span class="lineno"><a class="line" href="dtls_8c.html#afcc64c0abfd9b157b71a47e5a5a78b26"> 2460</a></span>&#160;<a class="code" href="dtls_8c.html#afcc64c0abfd9b157b71a47e5a5a78b26">check_server_hello</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l02461"></a><span class="lineno"> 2461</span>&#160;              <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l02462"></a><span class="lineno"> 2462</span>&#160;              <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l02463"></a><span class="lineno"> 2463</span>&#160;{</div>
<div class="line"><a name="l02464"></a><span class="lineno"> 2464</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *handshake = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l02465"></a><span class="lineno"> 2465</span>&#160;</div>
<div class="line"><a name="l02466"></a><span class="lineno"> 2466</span>&#160;  <span class="comment">/* This function is called when we expect a ServerHello (i.e. we</span></div>
<div class="line"><a name="l02467"></a><span class="lineno"> 2467</span>&#160;<span class="comment">   * have sent a ClientHello).  We might instead receive a HelloVerify</span></div>
<div class="line"><a name="l02468"></a><span class="lineno"> 2468</span>&#160;<span class="comment">   * request containing a cookie. If so, we must repeat the</span></div>
<div class="line"><a name="l02469"></a><span class="lineno"> 2469</span>&#160;<span class="comment">   * ClientHello with the given Cookie.</span></div>
<div class="line"><a name="l02470"></a><span class="lineno"> 2470</span>&#160;<span class="comment">   */</span></div>
<div class="line"><a name="l02471"></a><span class="lineno"> 2471</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>)</div>
<div class="line"><a name="l02472"></a><span class="lineno"> 2472</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02473"></a><span class="lineno"> 2473</span>&#160;</div>
<div class="line"><a name="l02474"></a><span class="lineno"> 2474</span>&#160;  <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l02475"></a><span class="lineno"> 2475</span>&#160;</div>
<div class="line"><a name="l02476"></a><span class="lineno"> 2476</span>&#160;  <span class="comment">/* FIXME: check data_length before accessing fields */</span></div>
<div class="line"><a name="l02477"></a><span class="lineno"> 2477</span>&#160;</div>
<div class="line"><a name="l02478"></a><span class="lineno"> 2478</span>&#160;  <span class="comment">/* Get the server&#39;s random data and store selected cipher suite</span></div>
<div class="line"><a name="l02479"></a><span class="lineno"> 2479</span>&#160;<span class="comment">   * and compression method (like dtls_update_parameters().</span></div>
<div class="line"><a name="l02480"></a><span class="lineno"> 2480</span>&#160;<span class="comment">   * Then calculate master secret and wait for ServerHelloDone. When received,</span></div>
<div class="line"><a name="l02481"></a><span class="lineno"> 2481</span>&#160;<span class="comment">   * send ClientKeyExchange (?) and ChangeCipherSpec + ClientFinished. */</span></div>
<div class="line"><a name="l02482"></a><span class="lineno"> 2482</span>&#160;    </div>
<div class="line"><a name="l02483"></a><span class="lineno"> 2483</span>&#160;  <span class="comment">/* check server version */</span></div>
<div class="line"><a name="l02484"></a><span class="lineno"> 2484</span>&#160;  data += <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>;</div>
<div class="line"><a name="l02485"></a><span class="lineno"> 2485</span>&#160;  data_length -= <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>;</div>
<div class="line"><a name="l02486"></a><span class="lineno"> 2486</span>&#160;    </div>
<div class="line"><a name="l02487"></a><span class="lineno"> 2487</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data) != <a class="code" href="dtls_8h.html#af0c44db3bf3a6a52e9ed271218daeaa6">DTLS_VERSION</a>) {</div>
<div class="line"><a name="l02488"></a><span class="lineno"> 2488</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;unknown DTLS version\n&quot;</span>);</div>
<div class="line"><a name="l02489"></a><span class="lineno"> 2489</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaa392c9a6bb02b01386a1c34dc1947652">DTLS_ALERT_PROTOCOL_VERSION</a>);</div>
<div class="line"><a name="l02490"></a><span class="lineno"> 2490</span>&#160;  }</div>
<div class="line"><a name="l02491"></a><span class="lineno"> 2491</span>&#160;</div>
<div class="line"><a name="l02492"></a><span class="lineno"> 2492</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);         <span class="comment">/* skip version field */</span></div>
<div class="line"><a name="l02493"></a><span class="lineno"> 2493</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02494"></a><span class="lineno"> 2494</span>&#160;</div>
<div class="line"><a name="l02495"></a><span class="lineno"> 2495</span>&#160;  <span class="comment">/* store server random data */</span></div>
<div class="line"><a name="l02496"></a><span class="lineno"> 2496</span>&#160;  memcpy(handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.server, data, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>);</div>
<div class="line"><a name="l02497"></a><span class="lineno"> 2497</span>&#160;  <span class="comment">/* skip server random */</span></div>
<div class="line"><a name="l02498"></a><span class="lineno"> 2498</span>&#160;  data += <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>;</div>
<div class="line"><a name="l02499"></a><span class="lineno"> 2499</span>&#160;  data_length -= <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>;</div>
<div class="line"><a name="l02500"></a><span class="lineno"> 2500</span>&#160;</div>
<div class="line"><a name="l02501"></a><span class="lineno"> 2501</span>&#160;  <a class="code" href="dtls_8c.html#a09a0896d586ff27855ced6930cc17023">SKIP_VAR_FIELD</a>(data, data_length, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>); <span class="comment">/* skip session id */</span></div>
<div class="line"><a name="l02502"></a><span class="lineno"> 2502</span>&#160;    </div>
<div class="line"><a name="l02503"></a><span class="lineno"> 2503</span>&#160;  <span class="comment">/* Check cipher suite. As we offer all we have, it is sufficient</span></div>
<div class="line"><a name="l02504"></a><span class="lineno"> 2504</span>&#160;<span class="comment">   * to check if the cipher suite selected by the server is in our</span></div>
<div class="line"><a name="l02505"></a><span class="lineno"> 2505</span>&#160;<span class="comment">   * list of known cipher suites. Subsets are not supported. */</span></div>
<div class="line"><a name="l02506"></a><span class="lineno"> 2506</span>&#160;  handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a> = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l02507"></a><span class="lineno"> 2507</span>&#160;  <span class="keywordflow">if</span> (!<a class="code" href="dtls_8c.html#a37965d10b44a63ea6adbf28b9dc79b75">known_cipher</a>(ctx, handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>, 1)) {</div>
<div class="line"><a name="l02508"></a><span class="lineno"> 2508</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;unsupported cipher 0x%02x 0x%02x\n&quot;</span>,</div>
<div class="line"><a name="l02509"></a><span class="lineno"> 2509</span>&#160;         data[0], data[1]);</div>
<div class="line"><a name="l02510"></a><span class="lineno"> 2510</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda2cc56008c097883058c0e2e8ecc6751e">DTLS_ALERT_INSUFFICIENT_SECURITY</a>);</div>
<div class="line"><a name="l02511"></a><span class="lineno"> 2511</span>&#160;  }</div>
<div class="line"><a name="l02512"></a><span class="lineno"> 2512</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02513"></a><span class="lineno"> 2513</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02514"></a><span class="lineno"> 2514</span>&#160;</div>
<div class="line"><a name="l02515"></a><span class="lineno"> 2515</span>&#160;  <span class="comment">/* Check if NULL compression was selected. We do not know any other. */</span></div>
<div class="line"><a name="l02516"></a><span class="lineno"> 2516</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != <a class="code" href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2ac5b79ee16e8c0e46873fa63fdb1ab9ca">TLS_COMPRESSION_NULL</a>) {</div>
<div class="line"><a name="l02517"></a><span class="lineno"> 2517</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;unsupported compression method 0x%02x\n&quot;</span>, data[0]);</div>
<div class="line"><a name="l02518"></a><span class="lineno"> 2518</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda2cc56008c097883058c0e2e8ecc6751e">DTLS_ALERT_INSUFFICIENT_SECURITY</a>);</div>
<div class="line"><a name="l02519"></a><span class="lineno"> 2519</span>&#160;  }</div>
<div class="line"><a name="l02520"></a><span class="lineno"> 2520</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02521"></a><span class="lineno"> 2521</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02522"></a><span class="lineno"> 2522</span>&#160;</div>
<div class="line"><a name="l02523"></a><span class="lineno"> 2523</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#ad8c8390d0a1592207c4ea6dd0a623a9a">dtls_check_tls_extension</a>(peer, data, data_length, 0);</div>
<div class="line"><a name="l02524"></a><span class="lineno"> 2524</span>&#160;</div>
<div class="line"><a name="l02525"></a><span class="lineno"> 2525</span>&#160;error:</div>
<div class="line"><a name="l02526"></a><span class="lineno"> 2526</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02527"></a><span class="lineno"> 2527</span>&#160;}</div>
<div class="line"><a name="l02528"></a><span class="lineno"> 2528</span>&#160;</div>
<div class="line"><a name="l02529"></a><span class="lineno"> 2529</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02530"></a><span class="lineno"><a class="line" href="dtls_8c.html#a2b598b29d3148bfc02e826d94bbc0642"> 2530</a></span>&#160;<a class="code" href="dtls_8c.html#a2b598b29d3148bfc02e826d94bbc0642">check_server_hello_verify_request</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx,</div>
<div class="line"><a name="l02531"></a><span class="lineno"> 2531</span>&#160;                  <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l02532"></a><span class="lineno"> 2532</span>&#160;                  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l02533"></a><span class="lineno"> 2533</span>&#160;{</div>
<div class="line"><a name="l02534"></a><span class="lineno"> 2534</span>&#160;  <a class="code" href="dtls_8h.html#abd61d526ef995e63a6debfd8ddda9e98">dtls_hello_verify_t</a> *hv;</div>
<div class="line"><a name="l02535"></a><span class="lineno"> 2535</span>&#160;  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l02536"></a><span class="lineno"> 2536</span>&#160;</div>
<div class="line"><a name="l02537"></a><span class="lineno"> 2537</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#a85d3d5311baabdaa06b7824528eef4e5">DTLS_HV_LENGTH</a>)</div>
<div class="line"><a name="l02538"></a><span class="lineno"> 2538</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02539"></a><span class="lineno"> 2539</span>&#160;</div>
<div class="line"><a name="l02540"></a><span class="lineno"> 2540</span>&#160;  hv = (<a class="code" href="dtls_8h.html#abd61d526ef995e63a6debfd8ddda9e98">dtls_hello_verify_t</a> *)(data + <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>);</div>
<div class="line"><a name="l02541"></a><span class="lineno"> 2541</span>&#160;</div>
<div class="line"><a name="l02542"></a><span class="lineno"> 2542</span>&#160;  res = <a class="code" href="dtls_8c.html#aecd3ffe8bf8a3970d3e091ce8e7c6476">dtls_send_client_hello</a>(ctx, peer, hv-&gt;cookie, hv-&gt;cookie_length);</div>
<div class="line"><a name="l02543"></a><span class="lineno"> 2543</span>&#160;</div>
<div class="line"><a name="l02544"></a><span class="lineno"> 2544</span>&#160;  <span class="keywordflow">if</span> (res &lt; 0)</div>
<div class="line"><a name="l02545"></a><span class="lineno"> 2545</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;cannot send ClientHello\n&quot;</span>);</div>
<div class="line"><a name="l02546"></a><span class="lineno"> 2546</span>&#160;</div>
<div class="line"><a name="l02547"></a><span class="lineno"> 2547</span>&#160;  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02548"></a><span class="lineno"> 2548</span>&#160;}</div>
<div class="line"><a name="l02549"></a><span class="lineno"> 2549</span>&#160;</div>
<div class="line"><a name="l02550"></a><span class="lineno"> 2550</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l02551"></a><span class="lineno"> 2551</span>&#160;<span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02552"></a><span class="lineno"><a class="line" href="dtls_8c.html#a88db0e7ffa0836761bef7b62ac3d2fb7"> 2552</a></span>&#160;<a class="code" href="dtls_8c.html#a88db0e7ffa0836761bef7b62ac3d2fb7">check_server_certificate</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l02553"></a><span class="lineno"> 2553</span>&#160;             <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l02554"></a><span class="lineno"> 2554</span>&#160;             <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l02555"></a><span class="lineno"> 2555</span>&#160;{</div>
<div class="line"><a name="l02556"></a><span class="lineno"> 2556</span>&#160;  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l02557"></a><span class="lineno"> 2557</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *config = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l02558"></a><span class="lineno"> 2558</span>&#160;</div>
<div class="line"><a name="l02559"></a><span class="lineno"> 2559</span>&#160;  <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l02560"></a><span class="lineno"> 2560</span>&#160;</div>
<div class="line"><a name="l02561"></a><span class="lineno"> 2561</span>&#160;  assert(<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>));</div>
<div class="line"><a name="l02562"></a><span class="lineno"> 2562</span>&#160;</div>
<div class="line"><a name="l02563"></a><span class="lineno"> 2563</span>&#160;  data += <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>;</div>
<div class="line"><a name="l02564"></a><span class="lineno"> 2564</span>&#160;</div>
<div class="line"><a name="l02565"></a><span class="lineno"> 2565</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a238931e9197ce422acfba569deb2af71">dtls_uint24_to_int</a>(data) != 94) {</div>
<div class="line"><a name="l02566"></a><span class="lineno"> 2566</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;expect length of 94 bytes for server certificate message\n&quot;</span>);</div>
<div class="line"><a name="l02567"></a><span class="lineno"> 2567</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02568"></a><span class="lineno"> 2568</span>&#160;  }</div>
<div class="line"><a name="l02569"></a><span class="lineno"> 2569</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">uint24</a>);</div>
<div class="line"><a name="l02570"></a><span class="lineno"> 2570</span>&#160;</div>
<div class="line"><a name="l02571"></a><span class="lineno"> 2571</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a238931e9197ce422acfba569deb2af71">dtls_uint24_to_int</a>(data) != 91) {</div>
<div class="line"><a name="l02572"></a><span class="lineno"> 2572</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;expect length of 91 bytes for certificate\n&quot;</span>);</div>
<div class="line"><a name="l02573"></a><span class="lineno"> 2573</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02574"></a><span class="lineno"> 2574</span>&#160;  }</div>
<div class="line"><a name="l02575"></a><span class="lineno"> 2575</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">uint24</a>);</div>
<div class="line"><a name="l02576"></a><span class="lineno"> 2576</span>&#160;</div>
<div class="line"><a name="l02577"></a><span class="lineno"> 2577</span>&#160;  <span class="keywordflow">if</span> (memcmp(data, <a class="code" href="dtls_8c.html#aecdb18ea2b899994542ec46b23528738">cert_asn1_header</a>, <span class="keyword">sizeof</span>(<a class="code" href="dtls_8c.html#aecdb18ea2b899994542ec46b23528738">cert_asn1_header</a>))) {</div>
<div class="line"><a name="l02578"></a><span class="lineno"> 2578</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;got an unexpected Subject public key format\n&quot;</span>);</div>
<div class="line"><a name="l02579"></a><span class="lineno"> 2579</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02580"></a><span class="lineno"> 2580</span>&#160;  }</div>
<div class="line"><a name="l02581"></a><span class="lineno"> 2581</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="dtls_8c.html#aecdb18ea2b899994542ec46b23528738">cert_asn1_header</a>);</div>
<div class="line"><a name="l02582"></a><span class="lineno"> 2582</span>&#160;</div>
<div class="line"><a name="l02583"></a><span class="lineno"> 2583</span>&#160;  memcpy(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_x, data,</div>
<div class="line"><a name="l02584"></a><span class="lineno"> 2584</span>&#160;     <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_x));</div>
<div class="line"><a name="l02585"></a><span class="lineno"> 2585</span>&#160;  data += <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_x);</div>
<div class="line"><a name="l02586"></a><span class="lineno"> 2586</span>&#160;</div>
<div class="line"><a name="l02587"></a><span class="lineno"> 2587</span>&#160;  memcpy(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_y, data,</div>
<div class="line"><a name="l02588"></a><span class="lineno"> 2588</span>&#160;     <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_y));</div>
<div class="line"><a name="l02589"></a><span class="lineno"> 2589</span>&#160;  data += <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_y);</div>
<div class="line"><a name="l02590"></a><span class="lineno"> 2590</span>&#160;</div>
<div class="line"><a name="l02591"></a><span class="lineno"> 2591</span>&#160;  err = <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, verify_ecdsa_key, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>,</div>
<div class="line"><a name="l02592"></a><span class="lineno"> 2592</span>&#160;         config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_x,</div>
<div class="line"><a name="l02593"></a><span class="lineno"> 2593</span>&#160;         config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_y,</div>
<div class="line"><a name="l02594"></a><span class="lineno"> 2594</span>&#160;         <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_x));</div>
<div class="line"><a name="l02595"></a><span class="lineno"> 2595</span>&#160;  <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l02596"></a><span class="lineno"> 2596</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;The certificate was not accepted\n&quot;</span>);</div>
<div class="line"><a name="l02597"></a><span class="lineno"> 2597</span>&#160;    <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l02598"></a><span class="lineno"> 2598</span>&#160;  }</div>
<div class="line"><a name="l02599"></a><span class="lineno"> 2599</span>&#160;</div>
<div class="line"><a name="l02600"></a><span class="lineno"> 2600</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l02601"></a><span class="lineno"> 2601</span>&#160;}</div>
<div class="line"><a name="l02602"></a><span class="lineno"> 2602</span>&#160;</div>
<div class="line"><a name="l02603"></a><span class="lineno"> 2603</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02604"></a><span class="lineno"><a class="line" href="dtls_8c.html#a3de5b3956733293d3e19d83d3cc8d9bb"> 2604</a></span>&#160;<a class="code" href="dtls_8c.html#a3de5b3956733293d3e19d83d3cc8d9bb">check_server_key_exchange_ecdsa</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx,</div>
<div class="line"><a name="l02605"></a><span class="lineno"> 2605</span>&#160;                <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l02606"></a><span class="lineno"> 2606</span>&#160;                <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l02607"></a><span class="lineno"> 2607</span>&#160;{</div>
<div class="line"><a name="l02608"></a><span class="lineno"> 2608</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *config = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l02609"></a><span class="lineno"> 2609</span>&#160;  <span class="keywordtype">int</span> ret;</div>
<div class="line"><a name="l02610"></a><span class="lineno"> 2610</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result_r;</div>
<div class="line"><a name="l02611"></a><span class="lineno"> 2611</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *result_s;</div>
<div class="line"><a name="l02612"></a><span class="lineno"> 2612</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *key_params;</div>
<div class="line"><a name="l02613"></a><span class="lineno"> 2613</span>&#160;</div>
<div class="line"><a name="l02614"></a><span class="lineno"> 2614</span>&#160;  <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l02615"></a><span class="lineno"> 2615</span>&#160;</div>
<div class="line"><a name="l02616"></a><span class="lineno"> 2616</span>&#160;  assert(<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>));</div>
<div class="line"><a name="l02617"></a><span class="lineno"> 2617</span>&#160;</div>
<div class="line"><a name="l02618"></a><span class="lineno"> 2618</span>&#160;  data += <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>;</div>
<div class="line"><a name="l02619"></a><span class="lineno"> 2619</span>&#160;</div>
<div class="line"><a name="l02620"></a><span class="lineno"> 2620</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#ad9481c39cd66eac3059df28aef1e9843">DTLS_SKEXEC_LENGTH</a>) {</div>
<div class="line"><a name="l02621"></a><span class="lineno"> 2621</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;the packet length does not match the expected\n&quot;</span>);</div>
<div class="line"><a name="l02622"></a><span class="lineno"> 2622</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02623"></a><span class="lineno"> 2623</span>&#160;  }</div>
<div class="line"><a name="l02624"></a><span class="lineno"> 2624</span>&#160;  key_params = data;</div>
<div class="line"><a name="l02625"></a><span class="lineno"> 2625</span>&#160;</div>
<div class="line"><a name="l02626"></a><span class="lineno"> 2626</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != <a class="code" href="global_8h.html#ac97469cc46ceeb148ee92f47a26ebcf6">TLS_EC_CURVE_TYPE_NAMED_CURVE</a>) {</div>
<div class="line"><a name="l02627"></a><span class="lineno"> 2627</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;Only named curves supported\n&quot;</span>);</div>
<div class="line"><a name="l02628"></a><span class="lineno"> 2628</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l02629"></a><span class="lineno"> 2629</span>&#160;  }</div>
<div class="line"><a name="l02630"></a><span class="lineno"> 2630</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02631"></a><span class="lineno"> 2631</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02632"></a><span class="lineno"> 2632</span>&#160;</div>
<div class="line"><a name="l02633"></a><span class="lineno"> 2633</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data) != <a class="code" href="global_8h.html#a8095691f33c0ce6b22d205640ccc9417">TLS_EXT_ELLIPTIC_CURVES_SECP256R1</a>) {</div>
<div class="line"><a name="l02634"></a><span class="lineno"> 2634</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;secp256r1 supported\n&quot;</span>);</div>
<div class="line"><a name="l02635"></a><span class="lineno"> 2635</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l02636"></a><span class="lineno"> 2636</span>&#160;  }</div>
<div class="line"><a name="l02637"></a><span class="lineno"> 2637</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02638"></a><span class="lineno"> 2638</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02639"></a><span class="lineno"> 2639</span>&#160;</div>
<div class="line"><a name="l02640"></a><span class="lineno"> 2640</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != 1 + 2 * <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>) {</div>
<div class="line"><a name="l02641"></a><span class="lineno"> 2641</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;expected 65 bytes long public point\n&quot;</span>);</div>
<div class="line"><a name="l02642"></a><span class="lineno"> 2642</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l02643"></a><span class="lineno"> 2643</span>&#160;  }</div>
<div class="line"><a name="l02644"></a><span class="lineno"> 2644</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02645"></a><span class="lineno"> 2645</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02646"></a><span class="lineno"> 2646</span>&#160;</div>
<div class="line"><a name="l02647"></a><span class="lineno"> 2647</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) != 4) {</div>
<div class="line"><a name="l02648"></a><span class="lineno"> 2648</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;expected uncompressed public point\n&quot;</span>);</div>
<div class="line"><a name="l02649"></a><span class="lineno"> 2649</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02650"></a><span class="lineno"> 2650</span>&#160;  }</div>
<div class="line"><a name="l02651"></a><span class="lineno"> 2651</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02652"></a><span class="lineno"> 2652</span>&#160;  data_length -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02653"></a><span class="lineno"> 2653</span>&#160;</div>
<div class="line"><a name="l02654"></a><span class="lineno"> 2654</span>&#160;  memcpy(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_x, data, <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y));</div>
<div class="line"><a name="l02655"></a><span class="lineno"> 2655</span>&#160;  data += <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y);</div>
<div class="line"><a name="l02656"></a><span class="lineno"> 2656</span>&#160;  data_length -= <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y);</div>
<div class="line"><a name="l02657"></a><span class="lineno"> 2657</span>&#160;</div>
<div class="line"><a name="l02658"></a><span class="lineno"> 2658</span>&#160;  memcpy(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y, data, <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y));</div>
<div class="line"><a name="l02659"></a><span class="lineno"> 2659</span>&#160;  data += <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y);</div>
<div class="line"><a name="l02660"></a><span class="lineno"> 2660</span>&#160;  data_length -= <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_eph_pub_y);</div>
<div class="line"><a name="l02661"></a><span class="lineno"> 2661</span>&#160;</div>
<div class="line"><a name="l02662"></a><span class="lineno"> 2662</span>&#160;  ret = <a class="code" href="dtls_8c.html#af8409ba213cb87dbf9ed16ef87995c54">dtls_check_ecdsa_signature_elem</a>(data, data_length, &amp;result_r, &amp;result_s);</div>
<div class="line"><a name="l02663"></a><span class="lineno"> 2663</span>&#160;  <span class="keywordflow">if</span> (ret &lt; 0) {</div>
<div class="line"><a name="l02664"></a><span class="lineno"> 2664</span>&#160;    <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l02665"></a><span class="lineno"> 2665</span>&#160;  }</div>
<div class="line"><a name="l02666"></a><span class="lineno"> 2666</span>&#160;  data += ret;</div>
<div class="line"><a name="l02667"></a><span class="lineno"> 2667</span>&#160;  data_length -= ret;</div>
<div class="line"><a name="l02668"></a><span class="lineno"> 2668</span>&#160;</div>
<div class="line"><a name="l02669"></a><span class="lineno"> 2669</span>&#160;  ret = <a class="code" href="crypto_8c.html#a035860da45ba2586a95c8ef7f539a3c9">dtls_ecdsa_verify_sig</a>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_x, config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_y,</div>
<div class="line"><a name="l02670"></a><span class="lineno"> 2670</span>&#160;                <span class="keyword">sizeof</span>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.ecdsa.other_pub_x),</div>
<div class="line"><a name="l02671"></a><span class="lineno"> 2671</span>&#160;                config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.client, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>,</div>
<div class="line"><a name="l02672"></a><span class="lineno"> 2672</span>&#160;                config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">tmp</a>.<a class="code" href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">random</a>.server, <a class="code" href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a>,</div>
<div class="line"><a name="l02673"></a><span class="lineno"> 2673</span>&#160;                key_params,</div>
<div class="line"><a name="l02674"></a><span class="lineno"> 2674</span>&#160;                1 + 2 + 1 + 1 + (2 * <a class="code" href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a>),</div>
<div class="line"><a name="l02675"></a><span class="lineno"> 2675</span>&#160;                result_r, result_s);</div>
<div class="line"><a name="l02676"></a><span class="lineno"> 2676</span>&#160;</div>
<div class="line"><a name="l02677"></a><span class="lineno"> 2677</span>&#160;  <span class="keywordflow">if</span> (ret &lt; 0) {</div>
<div class="line"><a name="l02678"></a><span class="lineno"> 2678</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;wrong signature\n&quot;</span>);</div>
<div class="line"><a name="l02679"></a><span class="lineno"> 2679</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l02680"></a><span class="lineno"> 2680</span>&#160;  }</div>
<div class="line"><a name="l02681"></a><span class="lineno"> 2681</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l02682"></a><span class="lineno"> 2682</span>&#160;}</div>
<div class="line"><a name="l02683"></a><span class="lineno"> 2683</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02684"></a><span class="lineno"> 2684</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l02685"></a><span class="lineno"> 2685</span>&#160;<span class="preprocessor">#ifdef DTLS_PSK</span></div>
<div class="line"><a name="l02686"></a><span class="lineno"> 2686</span>&#160;<span class="preprocessor"></span><span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02687"></a><span class="lineno"><a class="line" href="dtls_8c.html#a915dccbe7e71d52d2650378f3aaad054"> 2687</a></span>&#160;<a class="code" href="dtls_8c.html#a915dccbe7e71d52d2650378f3aaad054">check_server_key_exchange_psk</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx,</div>
<div class="line"><a name="l02688"></a><span class="lineno"> 2688</span>&#160;                  <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l02689"></a><span class="lineno"> 2689</span>&#160;                  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l02690"></a><span class="lineno"> 2690</span>&#160;{</div>
<div class="line"><a name="l02691"></a><span class="lineno"> 2691</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *config = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l02692"></a><span class="lineno"> 2692</span>&#160;  uint16_t len;</div>
<div class="line"><a name="l02693"></a><span class="lineno"> 2693</span>&#160;</div>
<div class="line"><a name="l02694"></a><span class="lineno"> 2694</span>&#160;  <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l02695"></a><span class="lineno"> 2695</span>&#160;</div>
<div class="line"><a name="l02696"></a><span class="lineno"> 2696</span>&#160;  assert(<a class="code" href="dtls_8c.html#a8bb6e8bb947b943d2af4c1886a8e72ba">is_tls_psk_with_aes_128_ccm_8</a>(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>));</div>
<div class="line"><a name="l02697"></a><span class="lineno"> 2697</span>&#160;</div>
<div class="line"><a name="l02698"></a><span class="lineno"> 2698</span>&#160;  data += <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>;</div>
<div class="line"><a name="l02699"></a><span class="lineno"> 2699</span>&#160;</div>
<div class="line"><a name="l02700"></a><span class="lineno"> 2700</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + <a class="code" href="dtls_8c.html#a4c0c656efcfd0e33595914171e51ae6d">DTLS_SKEXECPSK_LENGTH_MIN</a>) {</div>
<div class="line"><a name="l02701"></a><span class="lineno"> 2701</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;the packet length does not match the expected\n&quot;</span>);</div>
<div class="line"><a name="l02702"></a><span class="lineno"> 2702</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02703"></a><span class="lineno"> 2703</span>&#160;  }</div>
<div class="line"><a name="l02704"></a><span class="lineno"> 2704</span>&#160;</div>
<div class="line"><a name="l02705"></a><span class="lineno"> 2705</span>&#160;  len = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l02706"></a><span class="lineno"> 2706</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02707"></a><span class="lineno"> 2707</span>&#160;</div>
<div class="line"><a name="l02708"></a><span class="lineno"> 2708</span>&#160;  <span class="keywordflow">if</span> (len != data_length - <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> - <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>)) {</div>
<div class="line"><a name="l02709"></a><span class="lineno"> 2709</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;the length of the server identity hint is worng\n&quot;</span>);</div>
<div class="line"><a name="l02710"></a><span class="lineno"> 2710</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02711"></a><span class="lineno"> 2711</span>&#160;  }</div>
<div class="line"><a name="l02712"></a><span class="lineno"> 2712</span>&#160;</div>
<div class="line"><a name="l02713"></a><span class="lineno"> 2713</span>&#160;  <span class="keywordflow">if</span> (len &gt; <a class="code" href="crypto_8h.html#ab96c8e0773a14d1ce1621eed1a78e2bd">DTLS_PSK_MAX_CLIENT_IDENTITY_LEN</a>) {</div>
<div class="line"><a name="l02714"></a><span class="lineno"> 2714</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;please use a smaller server identity hint\n&quot;</span>);</div>
<div class="line"><a name="l02715"></a><span class="lineno"> 2715</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l02716"></a><span class="lineno"> 2716</span>&#160;  }</div>
<div class="line"><a name="l02717"></a><span class="lineno"> 2717</span>&#160;</div>
<div class="line"><a name="l02718"></a><span class="lineno"> 2718</span>&#160;  <span class="comment">/* store the psk_identity_hint in config-&gt;keyx.psk for later use */</span></div>
<div class="line"><a name="l02719"></a><span class="lineno"> 2719</span>&#160;  config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.id_length = len;</div>
<div class="line"><a name="l02720"></a><span class="lineno"> 2720</span>&#160;  memcpy(config-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">keyx</a>.psk.identity, data, len);</div>
<div class="line"><a name="l02721"></a><span class="lineno"> 2721</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l02722"></a><span class="lineno"> 2722</span>&#160;}</div>
<div class="line"><a name="l02723"></a><span class="lineno"> 2723</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_PSK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02724"></a><span class="lineno"> 2724</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l02725"></a><span class="lineno"> 2725</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02726"></a><span class="lineno"><a class="line" href="dtls_8c.html#a61ddc44bfdb8a92b72911a402aa0164e"> 2726</a></span>&#160;<a class="code" href="dtls_8c.html#a61ddc44bfdb8a92b72911a402aa0164e">check_certificate_request</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l02727"></a><span class="lineno"> 2727</span>&#160;              <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l02728"></a><span class="lineno"> 2728</span>&#160;              <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l02729"></a><span class="lineno"> 2729</span>&#160;{</div>
<div class="line"><a name="l02730"></a><span class="lineno"> 2730</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l02731"></a><span class="lineno"> 2731</span>&#160;  <span class="keywordtype">int</span> auth_alg;</div>
<div class="line"><a name="l02732"></a><span class="lineno"> 2732</span>&#160;  <span class="keywordtype">int</span> sig_alg;</div>
<div class="line"><a name="l02733"></a><span class="lineno"> 2733</span>&#160;  <span class="keywordtype">int</span> hash_alg;</div>
<div class="line"><a name="l02734"></a><span class="lineno"> 2734</span>&#160;</div>
<div class="line"><a name="l02735"></a><span class="lineno"> 2735</span>&#160;  <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l02736"></a><span class="lineno"> 2736</span>&#160;</div>
<div class="line"><a name="l02737"></a><span class="lineno"> 2737</span>&#160;  assert(<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>));</div>
<div class="line"><a name="l02738"></a><span class="lineno"> 2738</span>&#160;</div>
<div class="line"><a name="l02739"></a><span class="lineno"> 2739</span>&#160;  data += <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>;</div>
<div class="line"><a name="l02740"></a><span class="lineno"> 2740</span>&#160;</div>
<div class="line"><a name="l02741"></a><span class="lineno"> 2741</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a> + 5) {</div>
<div class="line"><a name="l02742"></a><span class="lineno"> 2742</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;the packet length does not match the expected\n&quot;</span>);</div>
<div class="line"><a name="l02743"></a><span class="lineno"> 2743</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02744"></a><span class="lineno"> 2744</span>&#160;  }</div>
<div class="line"><a name="l02745"></a><span class="lineno"> 2745</span>&#160;</div>
<div class="line"><a name="l02746"></a><span class="lineno"> 2746</span>&#160;  i = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l02747"></a><span class="lineno"> 2747</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02748"></a><span class="lineno"> 2748</span>&#160;  <span class="keywordflow">if</span> (i + 1 &gt; data_length) {</div>
<div class="line"><a name="l02749"></a><span class="lineno"> 2749</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;the cerfificate types are too long\n&quot;</span>);</div>
<div class="line"><a name="l02750"></a><span class="lineno"> 2750</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02751"></a><span class="lineno"> 2751</span>&#160;  }</div>
<div class="line"><a name="l02752"></a><span class="lineno"> 2752</span>&#160;</div>
<div class="line"><a name="l02753"></a><span class="lineno"> 2753</span>&#160;  auth_alg = 0;</div>
<div class="line"><a name="l02754"></a><span class="lineno"> 2754</span>&#160;  <span class="keywordflow">for</span> (; i &gt; 0 ; i -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>)) {</div>
<div class="line"><a name="l02755"></a><span class="lineno"> 2755</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data) == <a class="code" href="global_8h.html#aaace8dce4341d910140609a96bb300db">TLS_CLIENT_CERTIFICATE_TYPE_ECDSA_SIGN</a></div>
<div class="line"><a name="l02756"></a><span class="lineno"> 2756</span>&#160;    &amp;&amp; auth_alg == 0)</div>
<div class="line"><a name="l02757"></a><span class="lineno"> 2757</span>&#160;      auth_alg = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l02758"></a><span class="lineno"> 2758</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02759"></a><span class="lineno"> 2759</span>&#160;  }</div>
<div class="line"><a name="l02760"></a><span class="lineno"> 2760</span>&#160;</div>
<div class="line"><a name="l02761"></a><span class="lineno"> 2761</span>&#160;  <span class="keywordflow">if</span> (auth_alg != <a class="code" href="global_8h.html#aaace8dce4341d910140609a96bb300db">TLS_CLIENT_CERTIFICATE_TYPE_ECDSA_SIGN</a>) {</div>
<div class="line"><a name="l02762"></a><span class="lineno"> 2762</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;the request authentication algorithm is not supproted\n&quot;</span>);</div>
<div class="line"><a name="l02763"></a><span class="lineno"> 2763</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l02764"></a><span class="lineno"> 2764</span>&#160;  }</div>
<div class="line"><a name="l02765"></a><span class="lineno"> 2765</span>&#160;</div>
<div class="line"><a name="l02766"></a><span class="lineno"> 2766</span>&#160;  i = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(data);</div>
<div class="line"><a name="l02767"></a><span class="lineno"> 2767</span>&#160;  data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>);</div>
<div class="line"><a name="l02768"></a><span class="lineno"> 2768</span>&#160;  <span class="keywordflow">if</span> (i + 1 &gt; data_length) {</div>
<div class="line"><a name="l02769"></a><span class="lineno"> 2769</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;the signature and hash algorithm list is too long\n&quot;</span>);</div>
<div class="line"><a name="l02770"></a><span class="lineno"> 2770</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l02771"></a><span class="lineno"> 2771</span>&#160;  }</div>
<div class="line"><a name="l02772"></a><span class="lineno"> 2772</span>&#160;</div>
<div class="line"><a name="l02773"></a><span class="lineno"> 2773</span>&#160;  hash_alg = 0;</div>
<div class="line"><a name="l02774"></a><span class="lineno"> 2774</span>&#160;  sig_alg = 0;</div>
<div class="line"><a name="l02775"></a><span class="lineno"> 2775</span>&#160;  <span class="keywordflow">for</span> (; i &gt; 0 ; i -= <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a>)) {</div>
<div class="line"><a name="l02776"></a><span class="lineno"> 2776</span>&#160;    <span class="keywordtype">int</span> current_hash_alg;</div>
<div class="line"><a name="l02777"></a><span class="lineno"> 2777</span>&#160;    <span class="keywordtype">int</span> current_sig_alg;</div>
<div class="line"><a name="l02778"></a><span class="lineno"> 2778</span>&#160;</div>
<div class="line"><a name="l02779"></a><span class="lineno"> 2779</span>&#160;    current_hash_alg = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l02780"></a><span class="lineno"> 2780</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02781"></a><span class="lineno"> 2781</span>&#160;    current_sig_alg = <a class="code" href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a>(data);</div>
<div class="line"><a name="l02782"></a><span class="lineno"> 2782</span>&#160;    data += <span class="keyword">sizeof</span>(<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>);</div>
<div class="line"><a name="l02783"></a><span class="lineno"> 2783</span>&#160;</div>
<div class="line"><a name="l02784"></a><span class="lineno"> 2784</span>&#160;    <span class="keywordflow">if</span> (current_hash_alg == <a class="code" href="global_8h.html#aa347771eab2eabd24c4b9311fa61c4c9">TLS_EXT_SIG_HASH_ALGO_SHA256</a> &amp;&amp; hash_alg == 0 &amp;&amp; </div>
<div class="line"><a name="l02785"></a><span class="lineno"> 2785</span>&#160;        current_sig_alg == <a class="code" href="global_8h.html#af126227a026a7af436a4323db6d02ecc">TLS_EXT_SIG_HASH_ALGO_ECDSA</a> &amp;&amp; sig_alg == 0) {</div>
<div class="line"><a name="l02786"></a><span class="lineno"> 2786</span>&#160;      hash_alg = current_hash_alg;</div>
<div class="line"><a name="l02787"></a><span class="lineno"> 2787</span>&#160;      sig_alg = current_sig_alg;</div>
<div class="line"><a name="l02788"></a><span class="lineno"> 2788</span>&#160;    }</div>
<div class="line"><a name="l02789"></a><span class="lineno"> 2789</span>&#160;  }</div>
<div class="line"><a name="l02790"></a><span class="lineno"> 2790</span>&#160;</div>
<div class="line"><a name="l02791"></a><span class="lineno"> 2791</span>&#160;  <span class="keywordflow">if</span> (hash_alg != <a class="code" href="global_8h.html#aa347771eab2eabd24c4b9311fa61c4c9">TLS_EXT_SIG_HASH_ALGO_SHA256</a> ||</div>
<div class="line"><a name="l02792"></a><span class="lineno"> 2792</span>&#160;      sig_alg != <a class="code" href="global_8h.html#af126227a026a7af436a4323db6d02ecc">TLS_EXT_SIG_HASH_ALGO_ECDSA</a>) {</div>
<div class="line"><a name="l02793"></a><span class="lineno"> 2793</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;no supported hash and signature algorithem\n&quot;</span>);</div>
<div class="line"><a name="l02794"></a><span class="lineno"> 2794</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l02795"></a><span class="lineno"> 2795</span>&#160;  }</div>
<div class="line"><a name="l02796"></a><span class="lineno"> 2796</span>&#160;</div>
<div class="line"><a name="l02797"></a><span class="lineno"> 2797</span>&#160;  <span class="comment">/* common names are ignored */</span></div>
<div class="line"><a name="l02798"></a><span class="lineno"> 2798</span>&#160;</div>
<div class="line"><a name="l02799"></a><span class="lineno"> 2799</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ab17efe8550600d945ced029e43ca86d6">do_client_auth</a> = 1;</div>
<div class="line"><a name="l02800"></a><span class="lineno"> 2800</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l02801"></a><span class="lineno"> 2801</span>&#160;}</div>
<div class="line"><a name="l02802"></a><span class="lineno"> 2802</span>&#160;</div>
<div class="line"><a name="l02803"></a><span class="lineno"> 2803</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02804"></a><span class="lineno"><a class="line" href="dtls_8c.html#aca393c29148080d4dfa343c8ec283928"> 2804</a></span>&#160;<a class="code" href="dtls_8c.html#aca393c29148080d4dfa343c8ec283928">check_server_hellodone</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l02805"></a><span class="lineno"> 2805</span>&#160;              <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l02806"></a><span class="lineno"> 2806</span>&#160;              <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l02807"></a><span class="lineno"> 2807</span>&#160;{</div>
<div class="line"><a name="l02808"></a><span class="lineno"> 2808</span>&#160;  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l02809"></a><span class="lineno"> 2809</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l02810"></a><span class="lineno"> 2810</span>&#160;<span class="preprocessor"></span>  <span class="keyword">const</span> <a class="code" href="structdtls__ecdsa__key__t.html">dtls_ecdsa_key_t</a> *ecdsa_key;</div>
<div class="line"><a name="l02811"></a><span class="lineno"> 2811</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02812"></a><span class="lineno"> 2812</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l02813"></a><span class="lineno"> 2813</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *handshake = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l02814"></a><span class="lineno"> 2814</span>&#160;</div>
<div class="line"><a name="l02815"></a><span class="lineno"> 2815</span>&#160;  <span class="comment">/* calculate master key, send CCS */</span></div>
<div class="line"><a name="l02816"></a><span class="lineno"> 2816</span>&#160;</div>
<div class="line"><a name="l02817"></a><span class="lineno"> 2817</span>&#160;  <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l02818"></a><span class="lineno"> 2818</span>&#160;</div>
<div class="line"><a name="l02819"></a><span class="lineno"> 2819</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l02820"></a><span class="lineno"> 2820</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">if</span> (handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ab17efe8550600d945ced029e43ca86d6">do_client_auth</a>) {</div>
<div class="line"><a name="l02821"></a><span class="lineno"> 2821</span>&#160;</div>
<div class="line"><a name="l02822"></a><span class="lineno"> 2822</span>&#160;    res = <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, get_ecdsa_key, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, &amp;ecdsa_key);</div>
<div class="line"><a name="l02823"></a><span class="lineno"> 2823</span>&#160;    <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02824"></a><span class="lineno"> 2824</span>&#160;      <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;no ecdsa certificate to send in certificate\n&quot;</span>);</div>
<div class="line"><a name="l02825"></a><span class="lineno"> 2825</span>&#160;      <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02826"></a><span class="lineno"> 2826</span>&#160;    }</div>
<div class="line"><a name="l02827"></a><span class="lineno"> 2827</span>&#160;</div>
<div class="line"><a name="l02828"></a><span class="lineno"> 2828</span>&#160;    res = <a class="code" href="dtls_8c.html#a6b92c487825aa888acc0b55f5adc0220">dtls_send_certificate_ecdsa</a>(ctx, peer, ecdsa_key);</div>
<div class="line"><a name="l02829"></a><span class="lineno"> 2829</span>&#160;</div>
<div class="line"><a name="l02830"></a><span class="lineno"> 2830</span>&#160;    <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02831"></a><span class="lineno"> 2831</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_server_hello: cannot prepare Certificate record\n&quot;</span>);</div>
<div class="line"><a name="l02832"></a><span class="lineno"> 2832</span>&#160;      <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02833"></a><span class="lineno"> 2833</span>&#160;    }</div>
<div class="line"><a name="l02834"></a><span class="lineno"> 2834</span>&#160;  }</div>
<div class="line"><a name="l02835"></a><span class="lineno"> 2835</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02836"></a><span class="lineno"> 2836</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l02837"></a><span class="lineno"> 2837</span>&#160;  <span class="comment">/* send ClientKeyExchange */</span></div>
<div class="line"><a name="l02838"></a><span class="lineno"> 2838</span>&#160;  res = <a class="code" href="dtls_8c.html#a12e4cab07baba9eae2a0182f4e0bf72d">dtls_send_client_key_exchange</a>(ctx, peer);</div>
<div class="line"><a name="l02839"></a><span class="lineno"> 2839</span>&#160;</div>
<div class="line"><a name="l02840"></a><span class="lineno"> 2840</span>&#160;  <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02841"></a><span class="lineno"> 2841</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;cannot send KeyExchange message\n&quot;</span>);</div>
<div class="line"><a name="l02842"></a><span class="lineno"> 2842</span>&#160;    <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02843"></a><span class="lineno"> 2843</span>&#160;  }</div>
<div class="line"><a name="l02844"></a><span class="lineno"> 2844</span>&#160;</div>
<div class="line"><a name="l02845"></a><span class="lineno"> 2845</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l02846"></a><span class="lineno"> 2846</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">if</span> (handshake-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#ab17efe8550600d945ced029e43ca86d6">do_client_auth</a>) {</div>
<div class="line"><a name="l02847"></a><span class="lineno"> 2847</span>&#160;</div>
<div class="line"><a name="l02848"></a><span class="lineno"> 2848</span>&#160;    res = <a class="code" href="dtls_8c.html#adfe6fc0d0d66e9ffaef25c2c126b1c34">dtls_send_certificate_verify_ecdh</a>(ctx, peer, ecdsa_key);</div>
<div class="line"><a name="l02849"></a><span class="lineno"> 2849</span>&#160;</div>
<div class="line"><a name="l02850"></a><span class="lineno"> 2850</span>&#160;    <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02851"></a><span class="lineno"> 2851</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_server_hello: cannot prepare Certificate record\n&quot;</span>);</div>
<div class="line"><a name="l02852"></a><span class="lineno"> 2852</span>&#160;      <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02853"></a><span class="lineno"> 2853</span>&#160;    }</div>
<div class="line"><a name="l02854"></a><span class="lineno"> 2854</span>&#160;  }</div>
<div class="line"><a name="l02855"></a><span class="lineno"> 2855</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02856"></a><span class="lineno"> 2856</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l02857"></a><span class="lineno"> 2857</span>&#160;  res = <a class="code" href="dtls_8c.html#a94199c9fa65db19e0f761e3ff973eb4b">calculate_key_block</a>(ctx, handshake, peer,</div>
<div class="line"><a name="l02858"></a><span class="lineno"> 2858</span>&#160;                &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>);</div>
<div class="line"><a name="l02859"></a><span class="lineno"> 2859</span>&#160;  <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02860"></a><span class="lineno"> 2860</span>&#160;    <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02861"></a><span class="lineno"> 2861</span>&#160;  }</div>
<div class="line"><a name="l02862"></a><span class="lineno"> 2862</span>&#160;</div>
<div class="line"><a name="l02863"></a><span class="lineno"> 2863</span>&#160;  res = <a class="code" href="dtls_8c.html#a9cfb3c9e63f378d0d8e3d3d0c60537a5">dtls_send_ccs</a>(ctx, peer);</div>
<div class="line"><a name="l02864"></a><span class="lineno"> 2864</span>&#160;  <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l02865"></a><span class="lineno"> 2865</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;cannot send CCS message\n&quot;</span>);</div>
<div class="line"><a name="l02866"></a><span class="lineno"> 2866</span>&#160;    <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l02867"></a><span class="lineno"> 2867</span>&#160;  }</div>
<div class="line"><a name="l02868"></a><span class="lineno"> 2868</span>&#160;</div>
<div class="line"><a name="l02869"></a><span class="lineno"> 2869</span>&#160;  <span class="comment">/* and switch cipher suite */</span></div>
<div class="line"><a name="l02870"></a><span class="lineno"> 2870</span>&#160;  <a class="code" href="peer_8h.html#a9c37ce3fd7539154289dd17215179e2d">dtls_security_params_switch</a>(peer);</div>
<div class="line"><a name="l02871"></a><span class="lineno"> 2871</span>&#160;</div>
<div class="line"><a name="l02872"></a><span class="lineno"> 2872</span>&#160;  <span class="comment">/* Client Finished */</span></div>
<div class="line"><a name="l02873"></a><span class="lineno"> 2873</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a112e0d83a0e576b5d22df60241900a67">dtls_send_finished</a>(ctx, peer, <a class="code" href="dtls_8c.html#abac8adda40bcb694e059e38f6ac115f9">PRF_LABEL</a>(client), <a class="code" href="dtls_8c.html#a83b260e812e69f1dae18497d167770a9">PRF_LABEL_SIZE</a>(client));</div>
<div class="line"><a name="l02874"></a><span class="lineno"> 2874</span>&#160;}</div>
<div class="line"><a name="l02875"></a><span class="lineno"> 2875</span>&#160;</div>
<div class="line"><a name="l02876"></a><span class="lineno"> 2876</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02877"></a><span class="lineno"><a class="line" href="dtls_8c.html#adc4e7aa5066240a362341bbdb998bc71"> 2877</a></span>&#160;<a class="code" href="dtls_8c.html#adc4e7aa5066240a362341bbdb998bc71">decrypt_verify</a>(<a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *packet, <span class="keywordtype">size_t</span> length,</div>
<div class="line"><a name="l02878"></a><span class="lineno"> 2878</span>&#160;           <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> **cleartext)</div>
<div class="line"><a name="l02879"></a><span class="lineno"> 2879</span>&#160;{</div>
<div class="line"><a name="l02880"></a><span class="lineno"> 2880</span>&#160;  <a class="code" href="dtls_8h.html#a81936df7abb2c16aa897e3018aa24399">dtls_record_header_t</a> *header = <a class="code" href="dtls_8c.html#a35d050593196252c1826ac2e82cbac0b">DTLS_RECORD_HEADER</a>(packet);</div>
<div class="line"><a name="l02881"></a><span class="lineno"> 2881</span>&#160;  <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *security = <a class="code" href="peer_8h.html#af5de0315efd7e8c6b1aecf60078b2dd7">dtls_security_params_epoch</a>(peer, <a class="code" href="dtls_8c.html#a175d8e65080497463d13caf20e961500">dtls_get_epoch</a>(header));</div>
<div class="line"><a name="l02882"></a><span class="lineno"> 2882</span>&#160;  <span class="keywordtype">int</span> clen;</div>
<div class="line"><a name="l02883"></a><span class="lineno"> 2883</span>&#160;  </div>
<div class="line"><a name="l02884"></a><span class="lineno"> 2884</span>&#160;  *cleartext = (<a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *)packet + <span class="keyword">sizeof</span>(<a class="code" href="dtls_8h.html#a81936df7abb2c16aa897e3018aa24399">dtls_record_header_t</a>);</div>
<div class="line"><a name="l02885"></a><span class="lineno"> 2885</span>&#160;  clen = length - <span class="keyword">sizeof</span>(<a class="code" href="dtls_8h.html#a81936df7abb2c16aa897e3018aa24399">dtls_record_header_t</a>);</div>
<div class="line"><a name="l02886"></a><span class="lineno"> 2886</span>&#160;</div>
<div class="line"><a name="l02887"></a><span class="lineno"> 2887</span>&#160;  <span class="keywordflow">if</span> (!security) {</div>
<div class="line"><a name="l02888"></a><span class="lineno"> 2888</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;No security context for epoch: %i\n&quot;</span>, <a class="code" href="dtls_8c.html#a175d8e65080497463d13caf20e961500">dtls_get_epoch</a>(header));</div>
<div class="line"><a name="l02889"></a><span class="lineno"> 2889</span>&#160;    <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l02890"></a><span class="lineno"> 2890</span>&#160;  }</div>
<div class="line"><a name="l02891"></a><span class="lineno"> 2891</span>&#160;</div>
<div class="line"><a name="l02892"></a><span class="lineno"> 2892</span>&#160;  <span class="keywordflow">if</span> (security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a21d9fac709d739535b0cbecce4c18830">cipher</a> == <a class="code" href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd">TLS_NULL_WITH_NULL_NULL</a>) {</div>
<div class="line"><a name="l02893"></a><span class="lineno"> 2893</span>&#160;    <span class="comment">/* no cipher suite selected */</span></div>
<div class="line"><a name="l02894"></a><span class="lineno"> 2894</span>&#160;    <span class="keywordflow">return</span> clen;</div>
<div class="line"><a name="l02895"></a><span class="lineno"> 2895</span>&#160;  } <span class="keywordflow">else</span> { <span class="comment">/* TLS_PSK_WITH_AES_128_CCM_8 or TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 */</span></div>
<div class="line"><a name="l02900"></a><span class="lineno"> 2900</span>&#160;<span class="preprocessor">#define A_DATA_LEN 13</span></div>
<div class="line"><a name="l02901"></a><span class="lineno"> 2901</span>&#160;<span class="preprocessor"></span>    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> nonce[<a class="code" href="ccm_8h.html#a5c46c97c6c3ef5d4e5bd616dbd064859">DTLS_CCM_BLOCKSIZE</a>];</div>
<div class="line"><a name="l02902"></a><span class="lineno"> 2902</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> A_DATA[<a class="code" href="dtls_8c.html#aee0f4f3d8541ea6ab9c204761cc6082e">A_DATA_LEN</a>];</div>
<div class="line"><a name="l02903"></a><span class="lineno"> 2903</span>&#160;</div>
<div class="line"><a name="l02904"></a><span class="lineno"> 2904</span>&#160;    <span class="keywordflow">if</span> (clen &lt; 16)      <span class="comment">/* need at least IV and MAC */</span></div>
<div class="line"><a name="l02905"></a><span class="lineno"> 2905</span>&#160;      <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l02906"></a><span class="lineno"> 2906</span>&#160;</div>
<div class="line"><a name="l02907"></a><span class="lineno"> 2907</span>&#160;    memset(nonce, 0, <a class="code" href="ccm_8h.html#a5c46c97c6c3ef5d4e5bd616dbd064859">DTLS_CCM_BLOCKSIZE</a>);</div>
<div class="line"><a name="l02908"></a><span class="lineno"> 2908</span>&#160;    memcpy(nonce, <a class="code" href="crypto_8h.html#a7119d3239c34d7e7f219200792339541">dtls_kb_remote_iv</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>),</div>
<div class="line"><a name="l02909"></a><span class="lineno"> 2909</span>&#160;       <a class="code" href="crypto_8h.html#adcdadf1870e2acb2993b1a8726d26997">dtls_kb_iv_size</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>));</div>
<div class="line"><a name="l02910"></a><span class="lineno"> 2910</span>&#160;</div>
<div class="line"><a name="l02911"></a><span class="lineno"> 2911</span>&#160;    <span class="comment">/* read epoch and seq_num from message */</span></div>
<div class="line"><a name="l02912"></a><span class="lineno"> 2912</span>&#160;    memcpy(nonce + <a class="code" href="crypto_8h.html#adcdadf1870e2acb2993b1a8726d26997">dtls_kb_iv_size</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>), *cleartext, 8);</div>
<div class="line"><a name="l02913"></a><span class="lineno"> 2913</span>&#160;    *cleartext += 8;</div>
<div class="line"><a name="l02914"></a><span class="lineno"> 2914</span>&#160;    clen -= 8;</div>
<div class="line"><a name="l02915"></a><span class="lineno"> 2915</span>&#160;</div>
<div class="line"><a name="l02916"></a><span class="lineno"> 2916</span>&#160;    <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;nonce&quot;</span>, nonce, <a class="code" href="ccm_8h.html#a5c46c97c6c3ef5d4e5bd616dbd064859">DTLS_CCM_BLOCKSIZE</a>);</div>
<div class="line"><a name="l02917"></a><span class="lineno"> 2917</span>&#160;    <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;key&quot;</span>, <a class="code" href="crypto_8h.html#addc8fcbbdd80ba924d0ded2a6bae97f4">dtls_kb_remote_write_key</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>),</div>
<div class="line"><a name="l02918"></a><span class="lineno"> 2918</span>&#160;            <a class="code" href="crypto_8h.html#a726ef8efa2e072c3c5e1ea1019e716aa">dtls_kb_key_size</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>));</div>
<div class="line"><a name="l02919"></a><span class="lineno"> 2919</span>&#160;    <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;ciphertext&quot;</span>, *cleartext, clen);</div>
<div class="line"><a name="l02920"></a><span class="lineno"> 2920</span>&#160;</div>
<div class="line"><a name="l02921"></a><span class="lineno"> 2921</span>&#160;    <span class="comment">/* re-use N to create additional data according to RFC 5246, Section 6.2.3.3:</span></div>
<div class="line"><a name="l02922"></a><span class="lineno"> 2922</span>&#160;<span class="comment">     * </span></div>
<div class="line"><a name="l02923"></a><span class="lineno"> 2923</span>&#160;<span class="comment">     * additional_data = seq_num + TLSCompressed.type +</span></div>
<div class="line"><a name="l02924"></a><span class="lineno"> 2924</span>&#160;<span class="comment">     *                   TLSCompressed.version + TLSCompressed.length;</span></div>
<div class="line"><a name="l02925"></a><span class="lineno"> 2925</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l02926"></a><span class="lineno"> 2926</span>&#160;    memcpy(A_DATA, &amp;<a class="code" href="dtls_8c.html#a35d050593196252c1826ac2e82cbac0b">DTLS_RECORD_HEADER</a>(packet)-&gt;epoch, 8); <span class="comment">/* epoch and seq_num */</span></div>
<div class="line"><a name="l02927"></a><span class="lineno"> 2927</span>&#160;    memcpy(A_DATA + 8,  &amp;<a class="code" href="dtls_8c.html#a35d050593196252c1826ac2e82cbac0b">DTLS_RECORD_HEADER</a>(packet)-&gt;content_type, 3); <span class="comment">/* type and version */</span></div>
<div class="line"><a name="l02928"></a><span class="lineno"> 2928</span>&#160;    <a class="code" href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a>(A_DATA + 11, clen - 8); <span class="comment">/* length without nonce_explicit */</span></div>
<div class="line"><a name="l02929"></a><span class="lineno"> 2929</span>&#160;</div>
<div class="line"><a name="l02930"></a><span class="lineno"> 2930</span>&#160;    clen = <a class="code" href="crypto_8c.html#aac32554190e3970917a31ff01eed4080">dtls_decrypt</a>(*cleartext, clen, *cleartext, nonce,</div>
<div class="line"><a name="l02931"></a><span class="lineno"> 2931</span>&#160;               <a class="code" href="crypto_8h.html#addc8fcbbdd80ba924d0ded2a6bae97f4">dtls_kb_remote_write_key</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>),</div>
<div class="line"><a name="l02932"></a><span class="lineno"> 2932</span>&#160;               <a class="code" href="crypto_8h.html#a726ef8efa2e072c3c5e1ea1019e716aa">dtls_kb_key_size</a>(security, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>),</div>
<div class="line"><a name="l02933"></a><span class="lineno"> 2933</span>&#160;               A_DATA, <a class="code" href="dtls_8c.html#aee0f4f3d8541ea6ab9c204761cc6082e">A_DATA_LEN</a>);</div>
<div class="line"><a name="l02934"></a><span class="lineno"> 2934</span>&#160;    <span class="keywordflow">if</span> (clen &lt; 0)</div>
<div class="line"><a name="l02935"></a><span class="lineno"> 2935</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;decryption failed\n&quot;</span>);</div>
<div class="line"><a name="l02936"></a><span class="lineno"> 2936</span>&#160;    <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02937"></a><span class="lineno"> 2937</span>&#160;<span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a name="l02938"></a><span class="lineno"> 2938</span>&#160;<span class="preprocessor"></span>      printf(<span class="stringliteral">&quot;decrypt_verify(): found %i bytes cleartext\n&quot;</span>, clen);</div>
<div class="line"><a name="l02939"></a><span class="lineno"> 2939</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l02940"></a><span class="lineno"> 2940</span>&#160;<span class="preprocessor"></span>      <a class="code" href="peer_8h.html#a9d0ec25ba319a38b17f30cf156e85c51">dtls_security_params_free_other</a>(peer);</div>
<div class="line"><a name="l02941"></a><span class="lineno"> 2941</span>&#160;      <a class="code" href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a>(<span class="stringliteral">&quot;cleartext&quot;</span>, *cleartext, clen);</div>
<div class="line"><a name="l02942"></a><span class="lineno"> 2942</span>&#160;    }</div>
<div class="line"><a name="l02943"></a><span class="lineno"> 2943</span>&#160;  }</div>
<div class="line"><a name="l02944"></a><span class="lineno"> 2944</span>&#160;  <span class="keywordflow">return</span> clen;</div>
<div class="line"><a name="l02945"></a><span class="lineno"> 2945</span>&#160;}</div>
<div class="line"><a name="l02946"></a><span class="lineno"> 2946</span>&#160;</div>
<div class="line"><a name="l02947"></a><span class="lineno"> 2947</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02948"></a><span class="lineno"><a class="line" href="dtls_8c.html#ab3af0ee4375c0da833aacec49c6fd8ad"> 2948</a></span>&#160;<a class="code" href="dtls_8c.html#ab3af0ee4375c0da833aacec49c6fd8ad">dtls_send_hello_request</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer)</div>
<div class="line"><a name="l02949"></a><span class="lineno"> 2949</span>&#160;{</div>
<div class="line"><a name="l02950"></a><span class="lineno"> 2950</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a4f06884f659f6a5120be7e0b86d29880">dtls_send_handshake_msg_hash</a>(ctx, peer, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>,</div>
<div class="line"><a name="l02951"></a><span class="lineno"> 2951</span>&#160;                      <a class="code" href="dtls_8h.html#a66566dfd30b8ab388c08b4cde6c667cc">DTLS_HT_HELLO_REQUEST</a>,</div>
<div class="line"><a name="l02952"></a><span class="lineno"> 2952</span>&#160;                      NULL, 0, 0);</div>
<div class="line"><a name="l02953"></a><span class="lineno"> 2953</span>&#160;}</div>
<div class="line"><a name="l02954"></a><span class="lineno"> 2954</span>&#160;</div>
<div class="line"><a name="l02955"></a><span class="lineno"> 2955</span>&#160;<span class="keywordtype">int</span></div>
<div class="line"><a name="l02956"></a><span class="lineno"><a class="line" href="dtls_8h.html#a5676a0ceeeabd1ec38d378212f7af4a1"> 2956</a></span>&#160;<a class="code" href="dtls_8c.html#a5676a0ceeeabd1ec38d378212f7af4a1">dtls_renegotiate</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <span class="keyword">const</span> <a class="code" href="structsession__t.html">session_t</a> *dst)</div>
<div class="line"><a name="l02957"></a><span class="lineno"> 2957</span>&#160;{</div>
<div class="line"><a name="l02958"></a><span class="lineno"> 2958</span>&#160;  <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer = NULL;</div>
<div class="line"><a name="l02959"></a><span class="lineno"> 2959</span>&#160;  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l02960"></a><span class="lineno"> 2960</span>&#160;</div>
<div class="line"><a name="l02961"></a><span class="lineno"> 2961</span>&#160;  peer = <a class="code" href="dtls_8c.html#a70333bea2db35153177347b5c7700cab">dtls_get_peer</a>(ctx, dst);</div>
<div class="line"><a name="l02962"></a><span class="lineno"> 2962</span>&#160;</div>
<div class="line"><a name="l02963"></a><span class="lineno"> 2963</span>&#160;  <span class="keywordflow">if</span> (!peer) {</div>
<div class="line"><a name="l02964"></a><span class="lineno"> 2964</span>&#160;    <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l02965"></a><span class="lineno"> 2965</span>&#160;  }</div>
<div class="line"><a name="l02966"></a><span class="lineno"> 2966</span>&#160;  <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a>)</div>
<div class="line"><a name="l02967"></a><span class="lineno"> 2967</span>&#160;    <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l02968"></a><span class="lineno"> 2968</span>&#160;</div>
<div class="line"><a name="l02969"></a><span class="lineno"> 2969</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a> = <a class="code" href="crypto_8c.html#a25930cdb27a6ffcf05e2c2a9c95a6af8">dtls_handshake_new</a>();</div>
<div class="line"><a name="l02970"></a><span class="lineno"> 2970</span>&#160;  <span class="keywordflow">if</span> (!peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>)</div>
<div class="line"><a name="l02971"></a><span class="lineno"> 2971</span>&#160;    <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l02972"></a><span class="lineno"> 2972</span>&#160;</div>
<div class="line"><a name="l02973"></a><span class="lineno"> 2973</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">mseq_r</a> = 0;</div>
<div class="line"><a name="l02974"></a><span class="lineno"> 2974</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a694ce15382e7504a750a1b102ad8ec32">mseq_s</a> = 0;</div>
<div class="line"><a name="l02975"></a><span class="lineno"> 2975</span>&#160;</div>
<div class="line"><a name="l02976"></a><span class="lineno"> 2976</span>&#160;  <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a> == <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8afd8391395303e28ee9b375232cb68a1e">DTLS_CLIENT</a>) {</div>
<div class="line"><a name="l02977"></a><span class="lineno"> 2977</span>&#160;    <span class="comment">/* send ClientHello with empty Cookie */</span></div>
<div class="line"><a name="l02978"></a><span class="lineno"> 2978</span>&#160;    err = <a class="code" href="dtls_8c.html#aecd3ffe8bf8a3970d3e091ce8e7c6476">dtls_send_client_hello</a>(ctx, peer, NULL, 0);</div>
<div class="line"><a name="l02979"></a><span class="lineno"> 2979</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0)</div>
<div class="line"><a name="l02980"></a><span class="lineno"> 2980</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;cannot send ClientHello\n&quot;</span>);</div>
<div class="line"><a name="l02981"></a><span class="lineno"> 2981</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l02982"></a><span class="lineno"> 2982</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a1a76f1e49c80d22df9673f8471d1ec53">DTLS_STATE_CLIENTHELLO</a>;</div>
<div class="line"><a name="l02983"></a><span class="lineno"> 2983</span>&#160;    <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l02984"></a><span class="lineno"> 2984</span>&#160;  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a> == <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a>) {</div>
<div class="line"><a name="l02985"></a><span class="lineno"> 2985</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#ab3af0ee4375c0da833aacec49c6fd8ad">dtls_send_hello_request</a>(ctx, peer);</div>
<div class="line"><a name="l02986"></a><span class="lineno"> 2986</span>&#160;  }</div>
<div class="line"><a name="l02987"></a><span class="lineno"> 2987</span>&#160;</div>
<div class="line"><a name="l02988"></a><span class="lineno"> 2988</span>&#160;  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l02989"></a><span class="lineno"> 2989</span>&#160;}</div>
<div class="line"><a name="l02990"></a><span class="lineno"> 2990</span>&#160;</div>
<div class="line"><a name="l02991"></a><span class="lineno"> 2991</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l02992"></a><span class="lineno"><a class="line" href="dtls_8c.html#a24e7d6ad9fc0d87b7285615123bdd43d"> 2992</a></span>&#160;<a class="code" href="dtls_8c.html#a24e7d6ad9fc0d87b7285615123bdd43d">handle_handshake_msg</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, <a class="code" href="structsession__t.html">session_t</a> *session,</div>
<div class="line"><a name="l02993"></a><span class="lineno"> 2993</span>&#160;         <span class="keyword">const</span> <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8">dtls_peer_type</a> role, <span class="keyword">const</span> <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35">dtls_state_t</a> state,</div>
<div class="line"><a name="l02994"></a><span class="lineno"> 2994</span>&#160;         <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length) {</div>
<div class="line"><a name="l02995"></a><span class="lineno"> 2995</span>&#160;</div>
<div class="line"><a name="l02996"></a><span class="lineno"> 2996</span>&#160;  <span class="keywordtype">int</span> err = 0;</div>
<div class="line"><a name="l02997"></a><span class="lineno"> 2997</span>&#160;</div>
<div class="line"><a name="l02998"></a><span class="lineno"> 2998</span>&#160;  <span class="comment">/* This will clear the retransmission buffer if we get an expected</span></div>
<div class="line"><a name="l02999"></a><span class="lineno"> 2999</span>&#160;<span class="comment">   * handshake message. We have to make sure that no handshake message</span></div>
<div class="line"><a name="l03000"></a><span class="lineno"> 3000</span>&#160;<span class="comment">   * should get expected when we still should retransmit something, when</span></div>
<div class="line"><a name="l03001"></a><span class="lineno"> 3001</span>&#160;<span class="comment">   * we do everything accordingly to the DTLS 1.2 standard this should</span></div>
<div class="line"><a name="l03002"></a><span class="lineno"> 3002</span>&#160;<span class="comment">   * not be a problem. */</span></div>
<div class="line"><a name="l03003"></a><span class="lineno"> 3003</span>&#160;  <span class="keywordflow">if</span> (peer) {</div>
<div class="line"><a name="l03004"></a><span class="lineno"> 3004</span>&#160;    <a class="code" href="dtls_8c.html#a3742f5067d1b0693d6a41e70d4ecd5b5">dtls_stop_retransmission</a>(ctx, peer);</div>
<div class="line"><a name="l03005"></a><span class="lineno"> 3005</span>&#160;  }</div>
<div class="line"><a name="l03006"></a><span class="lineno"> 3006</span>&#160;</div>
<div class="line"><a name="l03007"></a><span class="lineno"> 3007</span>&#160;  <span class="comment">/* The following switch construct handles the given message with</span></div>
<div class="line"><a name="l03008"></a><span class="lineno"> 3008</span>&#160;<span class="comment">   * respect to the current internal state for this peer. In case of</span></div>
<div class="line"><a name="l03009"></a><span class="lineno"> 3009</span>&#160;<span class="comment">   * error, it is left with return 0. */</span></div>
<div class="line"><a name="l03010"></a><span class="lineno"> 3010</span>&#160;</div>
<div class="line"><a name="l03011"></a><span class="lineno"> 3011</span>&#160;  <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;handle handshake packet of type: %s (%i)\n&quot;</span>,</div>
<div class="line"><a name="l03012"></a><span class="lineno"> 3012</span>&#160;         <a class="code" href="dtls_8c.html#a00707f0f82235a2432338e77dae0911d">dtls_handshake_type_to_name</a>(data[0]), data[0]);</div>
<div class="line"><a name="l03013"></a><span class="lineno"> 3013</span>&#160;  <span class="keywordflow">switch</span> (data[0]) {</div>
<div class="line"><a name="l03014"></a><span class="lineno"> 3014</span>&#160;</div>
<div class="line"><a name="l03015"></a><span class="lineno"> 3015</span>&#160;  <span class="comment">/************************************************************************</span></div>
<div class="line"><a name="l03016"></a><span class="lineno"> 3016</span>&#160;<span class="comment">   * Client states</span></div>
<div class="line"><a name="l03017"></a><span class="lineno"> 3017</span>&#160;<span class="comment">   ************************************************************************/</span></div>
<div class="line"><a name="l03018"></a><span class="lineno"> 3018</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#ab04f98f1863c785fabd97925c9746f7d">DTLS_HT_HELLO_VERIFY_REQUEST</a>:</div>
<div class="line"><a name="l03019"></a><span class="lineno"> 3019</span>&#160;</div>
<div class="line"><a name="l03020"></a><span class="lineno"> 3020</span>&#160;    <span class="keywordflow">if</span> (state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a1a76f1e49c80d22df9673f8471d1ec53">DTLS_STATE_CLIENTHELLO</a>) {</div>
<div class="line"><a name="l03021"></a><span class="lineno"> 3021</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03022"></a><span class="lineno"> 3022</span>&#160;    }</div>
<div class="line"><a name="l03023"></a><span class="lineno"> 3023</span>&#160;</div>
<div class="line"><a name="l03024"></a><span class="lineno"> 3024</span>&#160;    err = <a class="code" href="dtls_8c.html#a2b598b29d3148bfc02e826d94bbc0642">check_server_hello_verify_request</a>(ctx, peer, data, data_length);</div>
<div class="line"><a name="l03025"></a><span class="lineno"> 3025</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03026"></a><span class="lineno"> 3026</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error in check_server_hello_verify_request err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03027"></a><span class="lineno"> 3027</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03028"></a><span class="lineno"> 3028</span>&#160;    }</div>
<div class="line"><a name="l03029"></a><span class="lineno"> 3029</span>&#160;</div>
<div class="line"><a name="l03030"></a><span class="lineno"> 3030</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03031"></a><span class="lineno"> 3031</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#ad5882a5ff4073ffefa266bb2c4a1ee3c">DTLS_HT_SERVER_HELLO</a>:</div>
<div class="line"><a name="l03032"></a><span class="lineno"> 3032</span>&#160;</div>
<div class="line"><a name="l03033"></a><span class="lineno"> 3033</span>&#160;    <span class="keywordflow">if</span> (state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a1a76f1e49c80d22df9673f8471d1ec53">DTLS_STATE_CLIENTHELLO</a>) {</div>
<div class="line"><a name="l03034"></a><span class="lineno"> 3034</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03035"></a><span class="lineno"> 3035</span>&#160;    }</div>
<div class="line"><a name="l03036"></a><span class="lineno"> 3036</span>&#160;</div>
<div class="line"><a name="l03037"></a><span class="lineno"> 3037</span>&#160;    err = <a class="code" href="dtls_8c.html#afcc64c0abfd9b157b71a47e5a5a78b26">check_server_hello</a>(ctx, peer, data, data_length);</div>
<div class="line"><a name="l03038"></a><span class="lineno"> 3038</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03039"></a><span class="lineno"> 3039</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error in check_server_hello err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03040"></a><span class="lineno"> 3040</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03041"></a><span class="lineno"> 3041</span>&#160;    }</div>
<div class="line"><a name="l03042"></a><span class="lineno"> 3042</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>))</div>
<div class="line"><a name="l03043"></a><span class="lineno"> 3043</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35aa58cb54cde33e338814177a41ca2df6b">DTLS_STATE_WAIT_SERVERCERTIFICATE</a>;</div>
<div class="line"><a name="l03044"></a><span class="lineno"> 3044</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l03045"></a><span class="lineno"> 3045</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a5c55da9c6de8eb986de811cf2135a1a0">DTLS_STATE_WAIT_SERVERHELLODONE</a>;</div>
<div class="line"><a name="l03046"></a><span class="lineno"> 3046</span>&#160;    <span class="comment">/* update_hs_hash(peer, data, data_length); */</span></div>
<div class="line"><a name="l03047"></a><span class="lineno"> 3047</span>&#160;</div>
<div class="line"><a name="l03048"></a><span class="lineno"> 3048</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03049"></a><span class="lineno"> 3049</span>&#160;</div>
<div class="line"><a name="l03050"></a><span class="lineno"> 3050</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l03051"></a><span class="lineno"> 3051</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a55a0a899d7f151e7f53b76fe8a82c10e">DTLS_HT_CERTIFICATE</a>:</div>
<div class="line"><a name="l03052"></a><span class="lineno"> 3052</span>&#160;</div>
<div class="line"><a name="l03053"></a><span class="lineno"> 3053</span>&#160;    <span class="keywordflow">if</span> ((role == <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8afd8391395303e28ee9b375232cb68a1e">DTLS_CLIENT</a> &amp;&amp; state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35aa58cb54cde33e338814177a41ca2df6b">DTLS_STATE_WAIT_SERVERCERTIFICATE</a>) ||</div>
<div class="line"><a name="l03054"></a><span class="lineno"> 3054</span>&#160;        (role == <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a> &amp;&amp; state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35abdb6292772d18296f76c90fdc2533ab9">DTLS_STATE_WAIT_CLIENTCERTIFICATE</a>)) {</div>
<div class="line"><a name="l03055"></a><span class="lineno"> 3055</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03056"></a><span class="lineno"> 3056</span>&#160;    }</div>
<div class="line"><a name="l03057"></a><span class="lineno"> 3057</span>&#160;    err = <a class="code" href="dtls_8c.html#a88db0e7ffa0836761bef7b62ac3d2fb7">check_server_certificate</a>(ctx, peer, data, data_length);</div>
<div class="line"><a name="l03058"></a><span class="lineno"> 3058</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03059"></a><span class="lineno"> 3059</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error in check_server_certificate err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03060"></a><span class="lineno"> 3060</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03061"></a><span class="lineno"> 3061</span>&#160;    }</div>
<div class="line"><a name="l03062"></a><span class="lineno"> 3062</span>&#160;    <span class="keywordflow">if</span> (role == <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8afd8391395303e28ee9b375232cb68a1e">DTLS_CLIENT</a>) {</div>
<div class="line"><a name="l03063"></a><span class="lineno"> 3063</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a97f1fd8aadc13e8d721d5e40d42a0330">DTLS_STATE_WAIT_SERVERKEYEXCHANGE</a>;</div>
<div class="line"><a name="l03064"></a><span class="lineno"> 3064</span>&#160;    } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (role == <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a>){</div>
<div class="line"><a name="l03065"></a><span class="lineno"> 3065</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35aa013ec95c846eaebd37acecc1a2f8a05">DTLS_STATE_WAIT_CLIENTKEYEXCHANGE</a>;</div>
<div class="line"><a name="l03066"></a><span class="lineno"> 3066</span>&#160;    }</div>
<div class="line"><a name="l03067"></a><span class="lineno"> 3067</span>&#160;    <span class="comment">/* update_hs_hash(peer, data, data_length); */</span></div>
<div class="line"><a name="l03068"></a><span class="lineno"> 3068</span>&#160;</div>
<div class="line"><a name="l03069"></a><span class="lineno"> 3069</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03070"></a><span class="lineno"> 3070</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03071"></a><span class="lineno"> 3071</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l03072"></a><span class="lineno"> 3072</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#aab327e17614cf2902c5fc6169466613f">DTLS_HT_SERVER_KEY_EXCHANGE</a>:</div>
<div class="line"><a name="l03073"></a><span class="lineno"> 3073</span>&#160;</div>
<div class="line"><a name="l03074"></a><span class="lineno"> 3074</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l03075"></a><span class="lineno"> 3075</span>&#160;<span class="preprocessor"></span>    <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>)) {</div>
<div class="line"><a name="l03076"></a><span class="lineno"> 3076</span>&#160;      <span class="keywordflow">if</span> (state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a97f1fd8aadc13e8d721d5e40d42a0330">DTLS_STATE_WAIT_SERVERKEYEXCHANGE</a>) {</div>
<div class="line"><a name="l03077"></a><span class="lineno"> 3077</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03078"></a><span class="lineno"> 3078</span>&#160;      }</div>
<div class="line"><a name="l03079"></a><span class="lineno"> 3079</span>&#160;      err = <a class="code" href="dtls_8c.html#a3de5b3956733293d3e19d83d3cc8d9bb">check_server_key_exchange_ecdsa</a>(ctx, peer, data, data_length);</div>
<div class="line"><a name="l03080"></a><span class="lineno"> 3080</span>&#160;    }</div>
<div class="line"><a name="l03081"></a><span class="lineno"> 3081</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03082"></a><span class="lineno"> 3082</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#ifdef DTLS_PSK</span></div>
<div class="line"><a name="l03083"></a><span class="lineno"> 3083</span>&#160;<span class="preprocessor"></span>    <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8bb6e8bb947b943d2af4c1886a8e72ba">is_tls_psk_with_aes_128_ccm_8</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>)) {</div>
<div class="line"><a name="l03084"></a><span class="lineno"> 3084</span>&#160;      <span class="keywordflow">if</span> (state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a5c55da9c6de8eb986de811cf2135a1a0">DTLS_STATE_WAIT_SERVERHELLODONE</a>) {</div>
<div class="line"><a name="l03085"></a><span class="lineno"> 3085</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03086"></a><span class="lineno"> 3086</span>&#160;      }</div>
<div class="line"><a name="l03087"></a><span class="lineno"> 3087</span>&#160;      err = <a class="code" href="dtls_8c.html#a915dccbe7e71d52d2650378f3aaad054">check_server_key_exchange_psk</a>(ctx, peer, data, data_length);</div>
<div class="line"><a name="l03088"></a><span class="lineno"> 3088</span>&#160;    }</div>
<div class="line"><a name="l03089"></a><span class="lineno"> 3089</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_PSK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03090"></a><span class="lineno"> 3090</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l03091"></a><span class="lineno"> 3091</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03092"></a><span class="lineno"> 3092</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error in check_server_key_exchange err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03093"></a><span class="lineno"> 3093</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03094"></a><span class="lineno"> 3094</span>&#160;    }</div>
<div class="line"><a name="l03095"></a><span class="lineno"> 3095</span>&#160;    peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a5c55da9c6de8eb986de811cf2135a1a0">DTLS_STATE_WAIT_SERVERHELLODONE</a>;</div>
<div class="line"><a name="l03096"></a><span class="lineno"> 3096</span>&#160;    <span class="comment">/* update_hs_hash(peer, data, data_length); */</span></div>
<div class="line"><a name="l03097"></a><span class="lineno"> 3097</span>&#160;</div>
<div class="line"><a name="l03098"></a><span class="lineno"> 3098</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03099"></a><span class="lineno"> 3099</span>&#160;</div>
<div class="line"><a name="l03100"></a><span class="lineno"> 3100</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a44399f223a3e1c8a8bf3fc638a06a4d7">DTLS_HT_SERVER_HELLO_DONE</a>:</div>
<div class="line"><a name="l03101"></a><span class="lineno"> 3101</span>&#160;</div>
<div class="line"><a name="l03102"></a><span class="lineno"> 3102</span>&#160;    <span class="keywordflow">if</span> (state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a5c55da9c6de8eb986de811cf2135a1a0">DTLS_STATE_WAIT_SERVERHELLODONE</a>) {</div>
<div class="line"><a name="l03103"></a><span class="lineno"> 3103</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03104"></a><span class="lineno"> 3104</span>&#160;    }</div>
<div class="line"><a name="l03105"></a><span class="lineno"> 3105</span>&#160;</div>
<div class="line"><a name="l03106"></a><span class="lineno"> 3106</span>&#160;    err = <a class="code" href="dtls_8c.html#aca393c29148080d4dfa343c8ec283928">check_server_hellodone</a>(ctx, peer, data, data_length);</div>
<div class="line"><a name="l03107"></a><span class="lineno"> 3107</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03108"></a><span class="lineno"> 3108</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error in check_server_hellodone err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03109"></a><span class="lineno"> 3109</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03110"></a><span class="lineno"> 3110</span>&#160;    }</div>
<div class="line"><a name="l03111"></a><span class="lineno"> 3111</span>&#160;    peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35ab3436ceaa0f47131771c288b8b5f1840">DTLS_STATE_WAIT_CHANGECIPHERSPEC</a>;</div>
<div class="line"><a name="l03112"></a><span class="lineno"> 3112</span>&#160;    <span class="comment">/* update_hs_hash(peer, data, data_length); */</span></div>
<div class="line"><a name="l03113"></a><span class="lineno"> 3113</span>&#160;</div>
<div class="line"><a name="l03114"></a><span class="lineno"> 3114</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03115"></a><span class="lineno"> 3115</span>&#160;</div>
<div class="line"><a name="l03116"></a><span class="lineno"> 3116</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a6f49d7b0a6e9190d71d51b1ee9ff3bd5">DTLS_HT_CERTIFICATE_REQUEST</a>:</div>
<div class="line"><a name="l03117"></a><span class="lineno"> 3117</span>&#160;</div>
<div class="line"><a name="l03118"></a><span class="lineno"> 3118</span>&#160;    <span class="keywordflow">if</span> (state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a5c55da9c6de8eb986de811cf2135a1a0">DTLS_STATE_WAIT_SERVERHELLODONE</a>) {</div>
<div class="line"><a name="l03119"></a><span class="lineno"> 3119</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03120"></a><span class="lineno"> 3120</span>&#160;    }</div>
<div class="line"><a name="l03121"></a><span class="lineno"> 3121</span>&#160;</div>
<div class="line"><a name="l03122"></a><span class="lineno"> 3122</span>&#160;    err = <a class="code" href="dtls_8c.html#a61ddc44bfdb8a92b72911a402aa0164e">check_certificate_request</a>(ctx, peer, data, data_length);</div>
<div class="line"><a name="l03123"></a><span class="lineno"> 3123</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03124"></a><span class="lineno"> 3124</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error in check_certificate_request err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03125"></a><span class="lineno"> 3125</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03126"></a><span class="lineno"> 3126</span>&#160;    }</div>
<div class="line"><a name="l03127"></a><span class="lineno"> 3127</span>&#160;</div>
<div class="line"><a name="l03128"></a><span class="lineno"> 3128</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03129"></a><span class="lineno"> 3129</span>&#160;</div>
<div class="line"><a name="l03130"></a><span class="lineno"> 3130</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a16b49d03e041d43b60e1b7bacf35daad">DTLS_HT_FINISHED</a>:</div>
<div class="line"><a name="l03131"></a><span class="lineno"> 3131</span>&#160;    <span class="comment">/* expect a Finished message from server */</span></div>
<div class="line"><a name="l03132"></a><span class="lineno"> 3132</span>&#160;</div>
<div class="line"><a name="l03133"></a><span class="lineno"> 3133</span>&#160;    <span class="keywordflow">if</span> (state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a8c1ffc1652e7c5ba25239fe1f3a430ba">DTLS_STATE_WAIT_FINISHED</a>) {</div>
<div class="line"><a name="l03134"></a><span class="lineno"> 3134</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03135"></a><span class="lineno"> 3135</span>&#160;    }</div>
<div class="line"><a name="l03136"></a><span class="lineno"> 3136</span>&#160;</div>
<div class="line"><a name="l03137"></a><span class="lineno"> 3137</span>&#160;    err = <a class="code" href="dtls_8c.html#a91b2653747ca1e4058ae3b350019188b">check_finished</a>(ctx, peer, data, data_length);</div>
<div class="line"><a name="l03138"></a><span class="lineno"> 3138</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03139"></a><span class="lineno"> 3139</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error in check_finished err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03140"></a><span class="lineno"> 3140</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03141"></a><span class="lineno"> 3141</span>&#160;    }</div>
<div class="line"><a name="l03142"></a><span class="lineno"> 3142</span>&#160;    <span class="keywordflow">if</span> (role == <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a>) {</div>
<div class="line"><a name="l03143"></a><span class="lineno"> 3143</span>&#160;      <span class="comment">/* send ServerFinished */</span></div>
<div class="line"><a name="l03144"></a><span class="lineno"> 3144</span>&#160;      <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l03145"></a><span class="lineno"> 3145</span>&#160;</div>
<div class="line"><a name="l03146"></a><span class="lineno"> 3146</span>&#160;      <span class="comment">/* send change cipher spec message and switch to new configuration */</span></div>
<div class="line"><a name="l03147"></a><span class="lineno"> 3147</span>&#160;      err = <a class="code" href="dtls_8c.html#a9cfb3c9e63f378d0d8e3d3d0c60537a5">dtls_send_ccs</a>(ctx, peer);</div>
<div class="line"><a name="l03148"></a><span class="lineno"> 3148</span>&#160;      <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03149"></a><span class="lineno"> 3149</span>&#160;        <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;cannot send CCS message\n&quot;</span>);</div>
<div class="line"><a name="l03150"></a><span class="lineno"> 3150</span>&#160;        <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03151"></a><span class="lineno"> 3151</span>&#160;      }</div>
<div class="line"><a name="l03152"></a><span class="lineno"> 3152</span>&#160;</div>
<div class="line"><a name="l03153"></a><span class="lineno"> 3153</span>&#160;      <a class="code" href="peer_8h.html#a9c37ce3fd7539154289dd17215179e2d">dtls_security_params_switch</a>(peer);</div>
<div class="line"><a name="l03154"></a><span class="lineno"> 3154</span>&#160;</div>
<div class="line"><a name="l03155"></a><span class="lineno"> 3155</span>&#160;      err = <a class="code" href="dtls_8c.html#a112e0d83a0e576b5d22df60241900a67">dtls_send_finished</a>(ctx, peer, <a class="code" href="dtls_8c.html#abac8adda40bcb694e059e38f6ac115f9">PRF_LABEL</a>(server), <a class="code" href="dtls_8c.html#a83b260e812e69f1dae18497d167770a9">PRF_LABEL_SIZE</a>(server));</div>
<div class="line"><a name="l03156"></a><span class="lineno"> 3156</span>&#160;      <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03157"></a><span class="lineno"> 3157</span>&#160;        <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;sending server Finished failed\n&quot;</span>);</div>
<div class="line"><a name="l03158"></a><span class="lineno"> 3158</span>&#160;        <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03159"></a><span class="lineno"> 3159</span>&#160;      }</div>
<div class="line"><a name="l03160"></a><span class="lineno"> 3160</span>&#160;    }</div>
<div class="line"><a name="l03161"></a><span class="lineno"> 3161</span>&#160;    <a class="code" href="crypto_8c.html#aa17bcdc666796e52788f82ee003bb172">dtls_handshake_free</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>);</div>
<div class="line"><a name="l03162"></a><span class="lineno"> 3162</span>&#160;    peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a> = NULL;</div>
<div class="line"><a name="l03163"></a><span class="lineno"> 3163</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;Handshake complete\n&quot;</span>);</div>
<div class="line"><a name="l03164"></a><span class="lineno"> 3164</span>&#160;    <a class="code" href="debug_8h.html#a4a3c60a1e54594e78cd207c57ddb1378">check_stack</a>();</div>
<div class="line"><a name="l03165"></a><span class="lineno"> 3165</span>&#160;    peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a>;</div>
<div class="line"><a name="l03166"></a><span class="lineno"> 3166</span>&#160;</div>
<div class="line"><a name="l03167"></a><span class="lineno"> 3167</span>&#160;    <span class="comment">/* return here to not increase the message receive counter */</span></div>
<div class="line"><a name="l03168"></a><span class="lineno"> 3168</span>&#160;    <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03169"></a><span class="lineno"> 3169</span>&#160;</div>
<div class="line"><a name="l03170"></a><span class="lineno"> 3170</span>&#160;  <span class="comment">/************************************************************************</span></div>
<div class="line"><a name="l03171"></a><span class="lineno"> 3171</span>&#160;<span class="comment">   * Server states</span></div>
<div class="line"><a name="l03172"></a><span class="lineno"> 3172</span>&#160;<span class="comment">   ************************************************************************/</span></div>
<div class="line"><a name="l03173"></a><span class="lineno"> 3173</span>&#160;</div>
<div class="line"><a name="l03174"></a><span class="lineno"> 3174</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a577885c74492a460729a451f33a894c4">DTLS_HT_CLIENT_KEY_EXCHANGE</a>:</div>
<div class="line"><a name="l03175"></a><span class="lineno"> 3175</span>&#160;    <span class="comment">/* handle ClientHello, update msg and msglen and goto next if not finished */</span></div>
<div class="line"><a name="l03176"></a><span class="lineno"> 3176</span>&#160;</div>
<div class="line"><a name="l03177"></a><span class="lineno"> 3177</span>&#160;    <span class="keywordflow">if</span> (state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35aa013ec95c846eaebd37acecc1a2f8a05">DTLS_STATE_WAIT_CLIENTKEYEXCHANGE</a>) {</div>
<div class="line"><a name="l03178"></a><span class="lineno"> 3178</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03179"></a><span class="lineno"> 3179</span>&#160;    }</div>
<div class="line"><a name="l03180"></a><span class="lineno"> 3180</span>&#160;</div>
<div class="line"><a name="l03181"></a><span class="lineno"> 3181</span>&#160;    err = <a class="code" href="dtls_8c.html#ab9251eac8015afc7985ff4398657ea3f">check_client_keyexchange</a>(ctx, peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>, data, data_length);</div>
<div class="line"><a name="l03182"></a><span class="lineno"> 3182</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03183"></a><span class="lineno"> 3183</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error in check_client_keyexchange err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03184"></a><span class="lineno"> 3184</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03185"></a><span class="lineno"> 3185</span>&#160;    }</div>
<div class="line"><a name="l03186"></a><span class="lineno"> 3186</span>&#160;    <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l03187"></a><span class="lineno"> 3187</span>&#160;</div>
<div class="line"><a name="l03188"></a><span class="lineno"> 3188</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>) &amp;&amp;</div>
<div class="line"><a name="l03189"></a><span class="lineno"> 3189</span>&#160;    <a class="code" href="dtls_8c.html#a599f0d6e9134869e55b64c4f8720ebfa">is_ecdsa_client_auth_supported</a>(ctx))</div>
<div class="line"><a name="l03190"></a><span class="lineno"> 3190</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a1bb7cd2cdb77a9cdc5a5df541e8d99c4">DTLS_STATE_WAIT_CERTIFICATEVERIFY</a>;</div>
<div class="line"><a name="l03191"></a><span class="lineno"> 3191</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l03192"></a><span class="lineno"> 3192</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35ab3436ceaa0f47131771c288b8b5f1840">DTLS_STATE_WAIT_CHANGECIPHERSPEC</a>;</div>
<div class="line"><a name="l03193"></a><span class="lineno"> 3193</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03194"></a><span class="lineno"> 3194</span>&#160;</div>
<div class="line"><a name="l03195"></a><span class="lineno"> 3195</span>&#160;<span class="preprocessor">#ifdef DTLS_ECC</span></div>
<div class="line"><a name="l03196"></a><span class="lineno"> 3196</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a9abc650dd8339a227ddd165ede9350d0">DTLS_HT_CERTIFICATE_VERIFY</a>:</div>
<div class="line"><a name="l03197"></a><span class="lineno"> 3197</span>&#160;</div>
<div class="line"><a name="l03198"></a><span class="lineno"> 3198</span>&#160;    <span class="keywordflow">if</span> (state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a1bb7cd2cdb77a9cdc5a5df541e8d99c4">DTLS_STATE_WAIT_CERTIFICATEVERIFY</a>) {</div>
<div class="line"><a name="l03199"></a><span class="lineno"> 3199</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03200"></a><span class="lineno"> 3200</span>&#160;    }</div>
<div class="line"><a name="l03201"></a><span class="lineno"> 3201</span>&#160;</div>
<div class="line"><a name="l03202"></a><span class="lineno"> 3202</span>&#160;    err = <a class="code" href="dtls_8c.html#a017195b30506fbdf32fff55af9276a02">check_client_certificate_verify</a>(ctx, peer, data, data_length);</div>
<div class="line"><a name="l03203"></a><span class="lineno"> 3203</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03204"></a><span class="lineno"> 3204</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error in check_client_certificate_verify err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03205"></a><span class="lineno"> 3205</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03206"></a><span class="lineno"> 3206</span>&#160;    }</div>
<div class="line"><a name="l03207"></a><span class="lineno"> 3207</span>&#160;</div>
<div class="line"><a name="l03208"></a><span class="lineno"> 3208</span>&#160;    <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l03209"></a><span class="lineno"> 3209</span>&#160;    peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35ab3436ceaa0f47131771c288b8b5f1840">DTLS_STATE_WAIT_CHANGECIPHERSPEC</a>;</div>
<div class="line"><a name="l03210"></a><span class="lineno"> 3210</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03211"></a><span class="lineno"> 3211</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* DTLS_ECC */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03212"></a><span class="lineno"> 3212</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l03213"></a><span class="lineno"> 3213</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a25f0afef67a1fd8d9e3e61074d11e2f5">DTLS_HT_CLIENT_HELLO</a>:</div>
<div class="line"><a name="l03214"></a><span class="lineno"> 3214</span>&#160;</div>
<div class="line"><a name="l03215"></a><span class="lineno"> 3215</span>&#160;    <span class="keywordflow">if</span> ((peer &amp;&amp; state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a>) ||</div>
<div class="line"><a name="l03216"></a><span class="lineno"> 3216</span>&#160;    (!peer &amp;&amp; state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a84b76c7a571c4b1d659e26d4e540c151">DTLS_STATE_WAIT_CLIENTHELLO</a>)) {</div>
<div class="line"><a name="l03217"></a><span class="lineno"> 3217</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03218"></a><span class="lineno"> 3218</span>&#160;    }</div>
<div class="line"><a name="l03219"></a><span class="lineno"> 3219</span>&#160;</div>
<div class="line"><a name="l03220"></a><span class="lineno"> 3220</span>&#160;    <span class="comment">/* When no DTLS state exists for this peer, we only allow a</span></div>
<div class="line"><a name="l03221"></a><span class="lineno"> 3221</span>&#160;<span class="comment">       Client Hello message with</span></div>
<div class="line"><a name="l03222"></a><span class="lineno"> 3222</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l03223"></a><span class="lineno"> 3223</span>&#160;<span class="comment">       a) a valid cookie, or</span></div>
<div class="line"><a name="l03224"></a><span class="lineno"> 3224</span>&#160;<span class="comment">       b) no cookie.</span></div>
<div class="line"><a name="l03225"></a><span class="lineno"> 3225</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l03226"></a><span class="lineno"> 3226</span>&#160;<span class="comment">       Anything else will be rejected. Fragementation is not allowed</span></div>
<div class="line"><a name="l03227"></a><span class="lineno"> 3227</span>&#160;<span class="comment">       here as it would require peer state as well.</span></div>
<div class="line"><a name="l03228"></a><span class="lineno"> 3228</span>&#160;<span class="comment">    */</span></div>
<div class="line"><a name="l03229"></a><span class="lineno"> 3229</span>&#160;    err = <a class="code" href="dtls_8c.html#a604f68a801e55b884f7f7f1d2f1b9c9f">dtls_verify_peer</a>(ctx, peer, session, data, data_length);</div>
<div class="line"><a name="l03230"></a><span class="lineno"> 3230</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03231"></a><span class="lineno"> 3231</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error in dtls_verify_peer err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03232"></a><span class="lineno"> 3232</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03233"></a><span class="lineno"> 3233</span>&#160;    }</div>
<div class="line"><a name="l03234"></a><span class="lineno"> 3234</span>&#160;</div>
<div class="line"><a name="l03235"></a><span class="lineno"> 3235</span>&#160;    <span class="keywordflow">if</span> (err &gt; 0) {</div>
<div class="line"><a name="l03236"></a><span class="lineno"> 3236</span>&#160;      <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;server hello verify was sent\n&quot;</span>);</div>
<div class="line"><a name="l03237"></a><span class="lineno"> 3237</span>&#160;      <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03238"></a><span class="lineno"> 3238</span>&#160;    }</div>
<div class="line"><a name="l03239"></a><span class="lineno"> 3239</span>&#160;</div>
<div class="line"><a name="l03240"></a><span class="lineno"> 3240</span>&#160;    <span class="comment">/* At this point, we have a good relationship with this peer. This</span></div>
<div class="line"><a name="l03241"></a><span class="lineno"> 3241</span>&#160;<span class="comment">     * state is left for re-negotiation of key material. */</span></div>
<div class="line"><a name="l03242"></a><span class="lineno"> 3242</span>&#160;    <span class="keywordflow">if</span> (!peer) {</div>
<div class="line"><a name="l03243"></a><span class="lineno"> 3243</span>&#160;      <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *security;</div>
<div class="line"><a name="l03244"></a><span class="lineno"> 3244</span>&#160;</div>
<div class="line"><a name="l03245"></a><span class="lineno"> 3245</span>&#160;      <span class="comment">/* msg contains a Client Hello with a valid cookie, so we can</span></div>
<div class="line"><a name="l03246"></a><span class="lineno"> 3246</span>&#160;<span class="comment">       * safely create the server state machine and continue with</span></div>
<div class="line"><a name="l03247"></a><span class="lineno"> 3247</span>&#160;<span class="comment">       * the handshake. */</span></div>
<div class="line"><a name="l03248"></a><span class="lineno"> 3248</span>&#160;      peer = <a class="code" href="peer_8c.html#a209e22be64be13e116711829d21d864c">dtls_new_peer</a>(session);</div>
<div class="line"><a name="l03249"></a><span class="lineno"> 3249</span>&#160;      <span class="keywordflow">if</span> (!peer) {</div>
<div class="line"><a name="l03250"></a><span class="lineno"> 3250</span>&#160;        <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;cannot create peer\n&quot;</span>);</div>
<div class="line"><a name="l03251"></a><span class="lineno"> 3251</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l03252"></a><span class="lineno"> 3252</span>&#160;      }</div>
<div class="line"><a name="l03253"></a><span class="lineno"> 3253</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a> = <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a>;</div>
<div class="line"><a name="l03254"></a><span class="lineno"> 3254</span>&#160;</div>
<div class="line"><a name="l03255"></a><span class="lineno"> 3255</span>&#160;      <span class="comment">/* Initialize record sequence number to 1 for new peers. The first</span></div>
<div class="line"><a name="l03256"></a><span class="lineno"> 3256</span>&#160;<span class="comment">       * record with sequence number 0 is a stateless Hello Verify Request.</span></div>
<div class="line"><a name="l03257"></a><span class="lineno"> 3257</span>&#160;<span class="comment">       */</span></div>
<div class="line"><a name="l03258"></a><span class="lineno"> 3258</span>&#160;      security = <a class="code" href="peer_8h.html#a48abcad7383e1db957af9b4fed030d52">dtls_security_params</a>(peer);</div>
<div class="line"><a name="l03259"></a><span class="lineno"> 3259</span>&#160;      security-&gt;<a class="code" href="structdtls__security__parameters__t.html#a100dc82ee41004df1d9f211873332f87">rseq</a> = 1;</div>
<div class="line"><a name="l03260"></a><span class="lineno"> 3260</span>&#160;      <a class="code" href="dtls_8c.html#ae4a2961a027959f907145f82ca9107c3">dtls_add_peer</a>(ctx, peer);</div>
<div class="line"><a name="l03261"></a><span class="lineno"> 3261</span>&#160;    }</div>
<div class="line"><a name="l03262"></a><span class="lineno"> 3262</span>&#160;    <span class="keywordflow">if</span> (peer &amp;&amp; !peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>) {</div>
<div class="line"><a name="l03263"></a><span class="lineno"> 3263</span>&#160;      <a class="code" href="dtls_8h.html#a5c6625ffcf61189392768253e8919a45">dtls_handshake_header_t</a> *hs_header = <a class="code" href="dtls_8c.html#a2cc930733d35ea870c7a0a131bee0d7a">DTLS_HANDSHAKE_HEADER</a>(data);</div>
<div class="line"><a name="l03264"></a><span class="lineno"> 3264</span>&#160;</div>
<div class="line"><a name="l03265"></a><span class="lineno"> 3265</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a> = <a class="code" href="crypto_8c.html#a25930cdb27a6ffcf05e2c2a9c95a6af8">dtls_handshake_new</a>();</div>
<div class="line"><a name="l03266"></a><span class="lineno"> 3266</span>&#160;      <span class="keywordflow">if</span> (!peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>)</div>
<div class="line"><a name="l03267"></a><span class="lineno"> 3267</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l03268"></a><span class="lineno"> 3268</span>&#160;</div>
<div class="line"><a name="l03269"></a><span class="lineno"> 3269</span>&#160;      <a class="code" href="t__list_8h.html#adcb86fe4485a0f8ea79541117641f730">LIST_STRUCT_INIT</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>, reorder_queue);</div>
<div class="line"><a name="l03270"></a><span class="lineno"> 3270</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">mseq_r</a> = <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(hs_header-&gt;message_seq);</div>
<div class="line"><a name="l03271"></a><span class="lineno"> 3271</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a694ce15382e7504a750a1b102ad8ec32">mseq_s</a> = 1;</div>
<div class="line"><a name="l03272"></a><span class="lineno"> 3272</span>&#160;    }</div>
<div class="line"><a name="l03273"></a><span class="lineno"> 3273</span>&#160;</div>
<div class="line"><a name="l03274"></a><span class="lineno"> 3274</span>&#160;    <a class="code" href="dtls_8c.html#a82181208ec1e9f42896f0606e0036c1d">clear_hs_hash</a>(peer);</div>
<div class="line"><a name="l03275"></a><span class="lineno"> 3275</span>&#160;</div>
<div class="line"><a name="l03276"></a><span class="lineno"> 3276</span>&#160;    <span class="comment">/* First negotiation step: check for PSK</span></div>
<div class="line"><a name="l03277"></a><span class="lineno"> 3277</span>&#160;<span class="comment">     *</span></div>
<div class="line"><a name="l03278"></a><span class="lineno"> 3278</span>&#160;<span class="comment">     * Note that we already have checked that msg is a Handshake</span></div>
<div class="line"><a name="l03279"></a><span class="lineno"> 3279</span>&#160;<span class="comment">     * message containing a ClientHello. dtls_get_cipher() therefore</span></div>
<div class="line"><a name="l03280"></a><span class="lineno"> 3280</span>&#160;<span class="comment">     * does not check again.</span></div>
<div class="line"><a name="l03281"></a><span class="lineno"> 3281</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l03282"></a><span class="lineno"> 3282</span>&#160;    err = <a class="code" href="dtls_8c.html#a63f2c7e75b86bb2839b8fedf3fa9c93d">dtls_update_parameters</a>(ctx, peer, data, data_length);</div>
<div class="line"><a name="l03283"></a><span class="lineno"> 3283</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03284"></a><span class="lineno"> 3284</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error updating security parameters\n&quot;</span>);</div>
<div class="line"><a name="l03285"></a><span class="lineno"> 3285</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03286"></a><span class="lineno"> 3286</span>&#160;    }</div>
<div class="line"><a name="l03287"></a><span class="lineno"> 3287</span>&#160;</div>
<div class="line"><a name="l03288"></a><span class="lineno"> 3288</span>&#160;    <span class="comment">/* update finish MAC */</span></div>
<div class="line"><a name="l03289"></a><span class="lineno"> 3289</span>&#160;    <a class="code" href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a>(peer, data, data_length);</div>
<div class="line"><a name="l03290"></a><span class="lineno"> 3290</span>&#160;</div>
<div class="line"><a name="l03291"></a><span class="lineno"> 3291</span>&#160;    err = <a class="code" href="dtls_8c.html#afc54bc2ed42b4b65ad8f01abca9a8772">dtls_send_server_hello_msgs</a>(ctx, peer);</div>
<div class="line"><a name="l03292"></a><span class="lineno"> 3292</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03293"></a><span class="lineno"> 3293</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03294"></a><span class="lineno"> 3294</span>&#160;    }</div>
<div class="line"><a name="l03295"></a><span class="lineno"> 3295</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">cipher</a>) &amp;&amp;</div>
<div class="line"><a name="l03296"></a><span class="lineno"> 3296</span>&#160;    <a class="code" href="dtls_8c.html#a599f0d6e9134869e55b64c4f8720ebfa">is_ecdsa_client_auth_supported</a>(ctx))</div>
<div class="line"><a name="l03297"></a><span class="lineno"> 3297</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35abdb6292772d18296f76c90fdc2533ab9">DTLS_STATE_WAIT_CLIENTCERTIFICATE</a>;</div>
<div class="line"><a name="l03298"></a><span class="lineno"> 3298</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l03299"></a><span class="lineno"> 3299</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35aa013ec95c846eaebd37acecc1a2f8a05">DTLS_STATE_WAIT_CLIENTKEYEXCHANGE</a>;</div>
<div class="line"><a name="l03300"></a><span class="lineno"> 3300</span>&#160;</div>
<div class="line"><a name="l03301"></a><span class="lineno"> 3301</span>&#160;    <span class="comment">/* after sending the ServerHelloDone, we expect the</span></div>
<div class="line"><a name="l03302"></a><span class="lineno"> 3302</span>&#160;<span class="comment">     * ClientKeyExchange (possibly containing the PSK id),</span></div>
<div class="line"><a name="l03303"></a><span class="lineno"> 3303</span>&#160;<span class="comment">     * followed by a ChangeCipherSpec and an encrypted Finished.</span></div>
<div class="line"><a name="l03304"></a><span class="lineno"> 3304</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l03305"></a><span class="lineno"> 3305</span>&#160;</div>
<div class="line"><a name="l03306"></a><span class="lineno"> 3306</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03307"></a><span class="lineno"> 3307</span>&#160;</div>
<div class="line"><a name="l03308"></a><span class="lineno"> 3308</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a66566dfd30b8ab388c08b4cde6c667cc">DTLS_HT_HELLO_REQUEST</a>:</div>
<div class="line"><a name="l03309"></a><span class="lineno"> 3309</span>&#160;</div>
<div class="line"><a name="l03310"></a><span class="lineno"> 3310</span>&#160;    <span class="keywordflow">if</span> (state != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a>) {</div>
<div class="line"><a name="l03311"></a><span class="lineno"> 3311</span>&#160;      <span class="comment">/* we should just ignore such packets when in handshake */</span></div>
<div class="line"><a name="l03312"></a><span class="lineno"> 3312</span>&#160;      <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03313"></a><span class="lineno"> 3313</span>&#160;    }</div>
<div class="line"><a name="l03314"></a><span class="lineno"> 3314</span>&#160;</div>
<div class="line"><a name="l03315"></a><span class="lineno"> 3315</span>&#160;    <span class="keywordflow">if</span> (peer &amp;&amp; !peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>) {</div>
<div class="line"><a name="l03316"></a><span class="lineno"> 3316</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a> = <a class="code" href="crypto_8c.html#a25930cdb27a6ffcf05e2c2a9c95a6af8">dtls_handshake_new</a>();</div>
<div class="line"><a name="l03317"></a><span class="lineno"> 3317</span>&#160;      <span class="keywordflow">if</span> (!peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>)</div>
<div class="line"><a name="l03318"></a><span class="lineno"> 3318</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l03319"></a><span class="lineno"> 3319</span>&#160;</div>
<div class="line"><a name="l03320"></a><span class="lineno"> 3320</span>&#160;      <a class="code" href="t__list_8h.html#adcb86fe4485a0f8ea79541117641f730">LIST_STRUCT_INIT</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>, reorder_queue);</div>
<div class="line"><a name="l03321"></a><span class="lineno"> 3321</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">mseq_r</a> = 0;</div>
<div class="line"><a name="l03322"></a><span class="lineno"> 3322</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a694ce15382e7504a750a1b102ad8ec32">mseq_s</a> = 0;</div>
<div class="line"><a name="l03323"></a><span class="lineno"> 3323</span>&#160;    }</div>
<div class="line"><a name="l03324"></a><span class="lineno"> 3324</span>&#160;</div>
<div class="line"><a name="l03325"></a><span class="lineno"> 3325</span>&#160;    <span class="comment">/* send ClientHello with empty Cookie */</span></div>
<div class="line"><a name="l03326"></a><span class="lineno"> 3326</span>&#160;    err = <a class="code" href="dtls_8c.html#aecd3ffe8bf8a3970d3e091ce8e7c6476">dtls_send_client_hello</a>(ctx, peer, NULL, 0);</div>
<div class="line"><a name="l03327"></a><span class="lineno"> 3327</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03328"></a><span class="lineno"> 3328</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;cannot send ClientHello\n&quot;</span>);</div>
<div class="line"><a name="l03329"></a><span class="lineno"> 3329</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03330"></a><span class="lineno"> 3330</span>&#160;    }</div>
<div class="line"><a name="l03331"></a><span class="lineno"> 3331</span>&#160;    peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a1a76f1e49c80d22df9673f8471d1ec53">DTLS_STATE_CLIENTHELLO</a>;</div>
<div class="line"><a name="l03332"></a><span class="lineno"> 3332</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03333"></a><span class="lineno"> 3333</span>&#160;</div>
<div class="line"><a name="l03334"></a><span class="lineno"> 3334</span>&#160;  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l03335"></a><span class="lineno"> 3335</span>&#160;    <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;unhandled message %d\n&quot;</span>, data[0]);</div>
<div class="line"><a name="l03336"></a><span class="lineno"> 3336</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a>);</div>
<div class="line"><a name="l03337"></a><span class="lineno"> 3337</span>&#160;  }</div>
<div class="line"><a name="l03338"></a><span class="lineno"> 3338</span>&#160;</div>
<div class="line"><a name="l03339"></a><span class="lineno"> 3339</span>&#160;  <span class="keywordflow">if</span> (peer &amp;&amp; peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a> &amp;&amp; err &gt;= 0) {</div>
<div class="line"><a name="l03340"></a><span class="lineno"> 3340</span>&#160;    peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">mseq_r</a>++;</div>
<div class="line"><a name="l03341"></a><span class="lineno"> 3341</span>&#160;  }</div>
<div class="line"><a name="l03342"></a><span class="lineno"> 3342</span>&#160;</div>
<div class="line"><a name="l03343"></a><span class="lineno"> 3343</span>&#160;  <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03344"></a><span class="lineno"> 3344</span>&#160;}</div>
<div class="line"><a name="l03345"></a><span class="lineno"> 3345</span>&#160;      </div>
<div class="line"><a name="l03346"></a><span class="lineno"> 3346</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l03347"></a><span class="lineno"><a class="line" href="dtls_8c.html#ab199f50f39a96464ff7b532f2635ce9d"> 3347</a></span>&#160;<a class="code" href="dtls_8c.html#ab199f50f39a96464ff7b532f2635ce9d">handle_handshake</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, <a class="code" href="structsession__t.html">session_t</a> *session,</div>
<div class="line"><a name="l03348"></a><span class="lineno"> 3348</span>&#160;         <span class="keyword">const</span> <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8">dtls_peer_type</a> role, <span class="keyword">const</span> <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35">dtls_state_t</a> state,</div>
<div class="line"><a name="l03349"></a><span class="lineno"> 3349</span>&#160;         <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l03350"></a><span class="lineno"> 3350</span>&#160;{</div>
<div class="line"><a name="l03351"></a><span class="lineno"> 3351</span>&#160;  <a class="code" href="dtls_8h.html#a5c6625ffcf61189392768253e8919a45">dtls_handshake_header_t</a> *hs_header;</div>
<div class="line"><a name="l03352"></a><span class="lineno"> 3352</span>&#160;  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l03353"></a><span class="lineno"> 3353</span>&#160;</div>
<div class="line"><a name="l03354"></a><span class="lineno"> 3354</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; <a class="code" href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a>) {</div>
<div class="line"><a name="l03355"></a><span class="lineno"> 3355</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;handshake message too short\n&quot;</span>);</div>
<div class="line"><a name="l03356"></a><span class="lineno"> 3356</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l03357"></a><span class="lineno"> 3357</span>&#160;  }</div>
<div class="line"><a name="l03358"></a><span class="lineno"> 3358</span>&#160;  hs_header = <a class="code" href="dtls_8c.html#a2cc930733d35ea870c7a0a131bee0d7a">DTLS_HANDSHAKE_HEADER</a>(data);</div>
<div class="line"><a name="l03359"></a><span class="lineno"> 3359</span>&#160;</div>
<div class="line"><a name="l03360"></a><span class="lineno"> 3360</span>&#160;  <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;received handshake packet of type: %s (%i)\n&quot;</span>,</div>
<div class="line"><a name="l03361"></a><span class="lineno"> 3361</span>&#160;         <a class="code" href="dtls_8c.html#a00707f0f82235a2432338e77dae0911d">dtls_handshake_type_to_name</a>(hs_header-&gt;msg_type), hs_header-&gt;msg_type);</div>
<div class="line"><a name="l03362"></a><span class="lineno"> 3362</span>&#160;</div>
<div class="line"><a name="l03363"></a><span class="lineno"> 3363</span>&#160;  <span class="keywordflow">if</span> (!peer || !peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>) {</div>
<div class="line"><a name="l03364"></a><span class="lineno"> 3364</span>&#160;    <span class="comment">/* This is the initial ClientHello */</span></div>
<div class="line"><a name="l03365"></a><span class="lineno"> 3365</span>&#160;    <span class="keywordflow">if</span> (hs_header-&gt;msg_type != <a class="code" href="dtls_8h.html#a25f0afef67a1fd8d9e3e61074d11e2f5">DTLS_HT_CLIENT_HELLO</a> &amp;&amp; !peer) {</div>
<div class="line"><a name="l03366"></a><span class="lineno"> 3366</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;If there is no peer only ClientHello is allowed\n&quot;</span>);</div>
<div class="line"><a name="l03367"></a><span class="lineno"> 3367</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a>);</div>
<div class="line"><a name="l03368"></a><span class="lineno"> 3368</span>&#160;    }</div>
<div class="line"><a name="l03369"></a><span class="lineno"> 3369</span>&#160;</div>
<div class="line"><a name="l03370"></a><span class="lineno"> 3370</span>&#160;    <span class="comment">/* This is a ClientHello or Hello Request send when doing TLS renegotiation */</span></div>
<div class="line"><a name="l03371"></a><span class="lineno"> 3371</span>&#160;    <span class="keywordflow">if</span> (hs_header-&gt;msg_type == <a class="code" href="dtls_8h.html#a25f0afef67a1fd8d9e3e61074d11e2f5">DTLS_HT_CLIENT_HELLO</a> ||</div>
<div class="line"><a name="l03372"></a><span class="lineno"> 3372</span>&#160;    hs_header-&gt;msg_type == <a class="code" href="dtls_8h.html#a66566dfd30b8ab388c08b4cde6c667cc">DTLS_HT_HELLO_REQUEST</a>) {</div>
<div class="line"><a name="l03373"></a><span class="lineno"> 3373</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a24e7d6ad9fc0d87b7285615123bdd43d">handle_handshake_msg</a>(ctx, peer, session, role, state, data,</div>
<div class="line"><a name="l03374"></a><span class="lineno"> 3374</span>&#160;                  data_length);</div>
<div class="line"><a name="l03375"></a><span class="lineno"> 3375</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03376"></a><span class="lineno"> 3376</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;ignore unexpected handshake message\n&quot;</span>);</div>
<div class="line"><a name="l03377"></a><span class="lineno"> 3377</span>&#160;      <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03378"></a><span class="lineno"> 3378</span>&#160;    }</div>
<div class="line"><a name="l03379"></a><span class="lineno"> 3379</span>&#160;  }</div>
<div class="line"><a name="l03380"></a><span class="lineno"> 3380</span>&#160;</div>
<div class="line"><a name="l03381"></a><span class="lineno"> 3381</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(hs_header-&gt;message_seq) &lt; peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">mseq_r</a>) {</div>
<div class="line"><a name="l03382"></a><span class="lineno"> 3382</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;The message sequence number is too small, expected %i, got: %i\n&quot;</span>,</div>
<div class="line"><a name="l03383"></a><span class="lineno"> 3383</span>&#160;          peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">mseq_r</a>, <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(hs_header-&gt;message_seq));</div>
<div class="line"><a name="l03384"></a><span class="lineno"> 3384</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03385"></a><span class="lineno"> 3385</span>&#160;  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(hs_header-&gt;message_seq) &gt; peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">mseq_r</a>) {</div>
<div class="line"><a name="l03386"></a><span class="lineno"> 3386</span>&#160;    <span class="comment">/* A packet in between is missing, buffer this packet. */</span></div>
<div class="line"><a name="l03387"></a><span class="lineno"> 3387</span>&#160;    <a class="code" href="structnetq__t.html">netq_t</a> *n;</div>
<div class="line"><a name="l03388"></a><span class="lineno"> 3388</span>&#160;</div>
<div class="line"><a name="l03389"></a><span class="lineno"> 3389</span>&#160;    <span class="comment">/* TODO: only add packet that are not too new. */</span></div>
<div class="line"><a name="l03390"></a><span class="lineno"> 3390</span>&#160;    <span class="keywordflow">if</span> (data_length &gt; <a class="code" href="global_8h.html#acdbfba15eb1a5692e177d582b4ca1583">DTLS_MAX_BUF</a>) {</div>
<div class="line"><a name="l03391"></a><span class="lineno"> 3391</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;the packet is too big to buffer for reoder\n&quot;</span>);</div>
<div class="line"><a name="l03392"></a><span class="lineno"> 3392</span>&#160;      <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03393"></a><span class="lineno"> 3393</span>&#160;    }</div>
<div class="line"><a name="l03394"></a><span class="lineno"> 3394</span>&#160;</div>
<div class="line"><a name="l03395"></a><span class="lineno"> 3395</span>&#160;    <a class="code" href="structnetq__t.html">netq_t</a> *node = <a class="code" href="group__netq.html#gac769de2e30bcf2c2db89ff10822219d4">netq_head</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;reorder_queue);</div>
<div class="line"><a name="l03396"></a><span class="lineno"> 3396</span>&#160;    <span class="keywordflow">while</span> (node) {</div>
<div class="line"><a name="l03397"></a><span class="lineno"> 3397</span>&#160;      <a class="code" href="dtls_8h.html#a5c6625ffcf61189392768253e8919a45">dtls_handshake_header_t</a> *node_header = <a class="code" href="dtls_8c.html#a2cc930733d35ea870c7a0a131bee0d7a">DTLS_HANDSHAKE_HEADER</a>(node-&gt;<a class="code" href="structnetq__t.html#a5b4d387623df43fe25a3b11e9d4fb02c">data</a>);</div>
<div class="line"><a name="l03398"></a><span class="lineno"> 3398</span>&#160;      <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(node_header-&gt;message_seq) == <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(hs_header-&gt;message_seq)) {</div>
<div class="line"><a name="l03399"></a><span class="lineno"> 3399</span>&#160;        <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;a packet with this sequence number is already stored\n&quot;</span>);</div>
<div class="line"><a name="l03400"></a><span class="lineno"> 3400</span>&#160;        <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03401"></a><span class="lineno"> 3401</span>&#160;      }</div>
<div class="line"><a name="l03402"></a><span class="lineno"> 3402</span>&#160;      node = <a class="code" href="group__netq.html#gab4c90c003808a784ae1ee9322e75627d">netq_next</a>(node);</div>
<div class="line"><a name="l03403"></a><span class="lineno"> 3403</span>&#160;    }</div>
<div class="line"><a name="l03404"></a><span class="lineno"> 3404</span>&#160;</div>
<div class="line"><a name="l03405"></a><span class="lineno"> 3405</span>&#160;    n = <a class="code" href="group__netq.html#gafcf245cd934e9b8f0909a7ca8940e9cb">netq_node_new</a>(data_length);</div>
<div class="line"><a name="l03406"></a><span class="lineno"> 3406</span>&#160;    <span class="keywordflow">if</span> (!n) {</div>
<div class="line"><a name="l03407"></a><span class="lineno"> 3407</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;no space in reoder buffer\n&quot;</span>);</div>
<div class="line"><a name="l03408"></a><span class="lineno"> 3408</span>&#160;      <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03409"></a><span class="lineno"> 3409</span>&#160;    }</div>
<div class="line"><a name="l03410"></a><span class="lineno"> 3410</span>&#160;</div>
<div class="line"><a name="l03411"></a><span class="lineno"> 3411</span>&#160;    n-&gt;<a class="code" href="structnetq__t.html#aaca5f6407bd7b3162d9ee7e7e7b8f0ff">peer</a> = peer;</div>
<div class="line"><a name="l03412"></a><span class="lineno"> 3412</span>&#160;    n-&gt;<a class="code" href="structnetq__t.html#ac72c9378282becab5a273f612f58c124">length</a> = data_length;</div>
<div class="line"><a name="l03413"></a><span class="lineno"> 3413</span>&#160;    memcpy(n-&gt;<a class="code" href="structnetq__t.html#a5b4d387623df43fe25a3b11e9d4fb02c">data</a>, data, data_length);</div>
<div class="line"><a name="l03414"></a><span class="lineno"> 3414</span>&#160;</div>
<div class="line"><a name="l03415"></a><span class="lineno"> 3415</span>&#160;    <span class="keywordflow">if</span> (!<a class="code" href="group__netq.html#ga142c8e39fe2cd55250e3c1f0370dfe6b">netq_insert_node</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;reorder_queue, n)) {</div>
<div class="line"><a name="l03416"></a><span class="lineno"> 3416</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;cannot add packet to reoder buffer\n&quot;</span>);</div>
<div class="line"><a name="l03417"></a><span class="lineno"> 3417</span>&#160;      <a class="code" href="group__netq.html#ga9ef9da1a2af266dadef83ddf6c8524d7">netq_node_free</a>(n);</div>
<div class="line"><a name="l03418"></a><span class="lineno"> 3418</span>&#160;    }</div>
<div class="line"><a name="l03419"></a><span class="lineno"> 3419</span>&#160;    <a class="code" href="debug_8h.html#afde5692e7a590b0dd016d5753284c175">dtls_info</a>(<span class="stringliteral">&quot;Added packet for reordering\n&quot;</span>);</div>
<div class="line"><a name="l03420"></a><span class="lineno"> 3420</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03421"></a><span class="lineno"> 3421</span>&#160;  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(hs_header-&gt;message_seq) == peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">mseq_r</a>) {</div>
<div class="line"><a name="l03422"></a><span class="lineno"> 3422</span>&#160;    <span class="comment">/* Found the expected packet, use this and all the buffered packet */</span></div>
<div class="line"><a name="l03423"></a><span class="lineno"> 3423</span>&#160;    <span class="keywordtype">int</span> next = 1;</div>
<div class="line"><a name="l03424"></a><span class="lineno"> 3424</span>&#160;</div>
<div class="line"><a name="l03425"></a><span class="lineno"> 3425</span>&#160;    res = <a class="code" href="dtls_8c.html#a24e7d6ad9fc0d87b7285615123bdd43d">handle_handshake_msg</a>(ctx, peer, session, role, state, data, data_length);</div>
<div class="line"><a name="l03426"></a><span class="lineno"> 3426</span>&#160;    <span class="keywordflow">if</span> (res &lt; 0)</div>
<div class="line"><a name="l03427"></a><span class="lineno"> 3427</span>&#160;      <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l03428"></a><span class="lineno"> 3428</span>&#160;</div>
<div class="line"><a name="l03429"></a><span class="lineno"> 3429</span>&#160;    <span class="comment">/* We do not know in which order the packet are in the list just search the list for every packet. */</span></div>
<div class="line"><a name="l03430"></a><span class="lineno"> 3430</span>&#160;    <span class="keywordflow">while</span> (next &amp;&amp; peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>) {</div>
<div class="line"><a name="l03431"></a><span class="lineno"> 3431</span>&#160;      next = 0;</div>
<div class="line"><a name="l03432"></a><span class="lineno"> 3432</span>&#160;      <a class="code" href="structnetq__t.html">netq_t</a> *node = <a class="code" href="group__netq.html#gac769de2e30bcf2c2db89ff10822219d4">netq_head</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;reorder_queue);</div>
<div class="line"><a name="l03433"></a><span class="lineno"> 3433</span>&#160;      <span class="keywordflow">while</span> (node) {</div>
<div class="line"><a name="l03434"></a><span class="lineno"> 3434</span>&#160;        <a class="code" href="dtls_8h.html#a5c6625ffcf61189392768253e8919a45">dtls_handshake_header_t</a> *node_header = <a class="code" href="dtls_8c.html#a2cc930733d35ea870c7a0a131bee0d7a">DTLS_HANDSHAKE_HEADER</a>(node-&gt;<a class="code" href="structnetq__t.html#a5b4d387623df43fe25a3b11e9d4fb02c">data</a>);</div>
<div class="line"><a name="l03435"></a><span class="lineno"> 3435</span>&#160;</div>
<div class="line"><a name="l03436"></a><span class="lineno"> 3436</span>&#160;        <span class="keywordflow">if</span> (<a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(node_header-&gt;message_seq) == peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">mseq_r</a>) {</div>
<div class="line"><a name="l03437"></a><span class="lineno"> 3437</span>&#160;          <a class="code" href="group__netq.html#gace12cd802d76d5bd98b2eaedc591fd22">netq_remove</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;reorder_queue, node);</div>
<div class="line"><a name="l03438"></a><span class="lineno"> 3438</span>&#160;          next = 1;</div>
<div class="line"><a name="l03439"></a><span class="lineno"> 3439</span>&#160;          res = <a class="code" href="dtls_8c.html#a24e7d6ad9fc0d87b7285615123bdd43d">handle_handshake_msg</a>(ctx, peer, session, role, peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a>, node-&gt;<a class="code" href="structnetq__t.html#a5b4d387623df43fe25a3b11e9d4fb02c">data</a>, node-&gt;<a class="code" href="structnetq__t.html#ac72c9378282becab5a273f612f58c124">length</a>);</div>
<div class="line"><a name="l03440"></a><span class="lineno"> 3440</span>&#160;          <span class="keywordflow">if</span> (res &lt; 0) {</div>
<div class="line"><a name="l03441"></a><span class="lineno"> 3441</span>&#160;            <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l03442"></a><span class="lineno"> 3442</span>&#160;          }</div>
<div class="line"><a name="l03443"></a><span class="lineno"> 3443</span>&#160;</div>
<div class="line"><a name="l03444"></a><span class="lineno"> 3444</span>&#160;          <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03445"></a><span class="lineno"> 3445</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03446"></a><span class="lineno"> 3446</span>&#160;          node = <a class="code" href="group__netq.html#gab4c90c003808a784ae1ee9322e75627d">netq_next</a>(node);</div>
<div class="line"><a name="l03447"></a><span class="lineno"> 3447</span>&#160;        }</div>
<div class="line"><a name="l03448"></a><span class="lineno"> 3448</span>&#160;      }</div>
<div class="line"><a name="l03449"></a><span class="lineno"> 3449</span>&#160;    }</div>
<div class="line"><a name="l03450"></a><span class="lineno"> 3450</span>&#160;    <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l03451"></a><span class="lineno"> 3451</span>&#160;  }</div>
<div class="line"><a name="l03452"></a><span class="lineno"> 3452</span>&#160;  assert(0);</div>
<div class="line"><a name="l03453"></a><span class="lineno"> 3453</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03454"></a><span class="lineno"> 3454</span>&#160;}</div>
<div class="line"><a name="l03455"></a><span class="lineno"> 3455</span>&#160;</div>
<div class="line"><a name="l03456"></a><span class="lineno"> 3456</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l03457"></a><span class="lineno"><a class="line" href="dtls_8c.html#a4d7a16c9d0cd28666a2cc8ec471aa664"> 3457</a></span>&#160;<a class="code" href="dtls_8c.html#a4d7a16c9d0cd28666a2cc8ec471aa664">handle_ccs</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, </div>
<div class="line"><a name="l03458"></a><span class="lineno"> 3458</span>&#160;       <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *record_header, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length)</div>
<div class="line"><a name="l03459"></a><span class="lineno"> 3459</span>&#160;{</div>
<div class="line"><a name="l03460"></a><span class="lineno"> 3460</span>&#160;  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l03461"></a><span class="lineno"> 3461</span>&#160;  <a class="code" href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a> *handshake = peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>;</div>
<div class="line"><a name="l03462"></a><span class="lineno"> 3462</span>&#160;</div>
<div class="line"><a name="l03463"></a><span class="lineno"> 3463</span>&#160;  <span class="comment">/* A CCS message is handled after a KeyExchange message was</span></div>
<div class="line"><a name="l03464"></a><span class="lineno"> 3464</span>&#160;<span class="comment">   * received from the client. When security parameters have been</span></div>
<div class="line"><a name="l03465"></a><span class="lineno"> 3465</span>&#160;<span class="comment">   * updated successfully and a ChangeCipherSpec message was sent</span></div>
<div class="line"><a name="l03466"></a><span class="lineno"> 3466</span>&#160;<span class="comment">   * by ourself, the security context is switched and the record</span></div>
<div class="line"><a name="l03467"></a><span class="lineno"> 3467</span>&#160;<span class="comment">   * sequence number is reset. */</span></div>
<div class="line"><a name="l03468"></a><span class="lineno"> 3468</span>&#160;  </div>
<div class="line"><a name="l03469"></a><span class="lineno"> 3469</span>&#160;  <span class="keywordflow">if</span> (!peer || peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35ab3436ceaa0f47131771c288b8b5f1840">DTLS_STATE_WAIT_CHANGECIPHERSPEC</a>) {</div>
<div class="line"><a name="l03470"></a><span class="lineno"> 3470</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;expected ChangeCipherSpec during handshake\n&quot;</span>);</div>
<div class="line"><a name="l03471"></a><span class="lineno"> 3471</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03472"></a><span class="lineno"> 3472</span>&#160;  }</div>
<div class="line"><a name="l03473"></a><span class="lineno"> 3473</span>&#160;</div>
<div class="line"><a name="l03474"></a><span class="lineno"> 3474</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; 1 || data[0] != 1)</div>
<div class="line"><a name="l03475"></a><span class="lineno"> 3475</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l03476"></a><span class="lineno"> 3476</span>&#160;</div>
<div class="line"><a name="l03477"></a><span class="lineno"> 3477</span>&#160;  <span class="comment">/* Just change the cipher when we are on the same epoch */</span></div>
<div class="line"><a name="l03478"></a><span class="lineno"> 3478</span>&#160;  <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a> == <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a>) {</div>
<div class="line"><a name="l03479"></a><span class="lineno"> 3479</span>&#160;    err = <a class="code" href="dtls_8c.html#a94199c9fa65db19e0f761e3ff973eb4b">calculate_key_block</a>(ctx, handshake, peer,</div>
<div class="line"><a name="l03480"></a><span class="lineno"> 3480</span>&#160;                  &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>);</div>
<div class="line"><a name="l03481"></a><span class="lineno"> 3481</span>&#160;    <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03482"></a><span class="lineno"> 3482</span>&#160;      <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03483"></a><span class="lineno"> 3483</span>&#160;    }</div>
<div class="line"><a name="l03484"></a><span class="lineno"> 3484</span>&#160;  }</div>
<div class="line"><a name="l03485"></a><span class="lineno"> 3485</span>&#160;  </div>
<div class="line"><a name="l03486"></a><span class="lineno"> 3486</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a8c1ffc1652e7c5ba25239fe1f3a430ba">DTLS_STATE_WAIT_FINISHED</a>;</div>
<div class="line"><a name="l03487"></a><span class="lineno"> 3487</span>&#160;</div>
<div class="line"><a name="l03488"></a><span class="lineno"> 3488</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03489"></a><span class="lineno"> 3489</span>&#160;}  </div>
<div class="line"><a name="l03490"></a><span class="lineno"> 3490</span>&#160;</div>
<div class="line"><a name="l03495"></a><span class="lineno"> 3495</span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l03496"></a><span class="lineno"><a class="line" href="dtls_8c.html#a445994c602b105608f277c6fc066301d"> 3496</a></span>&#160;<a class="code" href="dtls_8c.html#a445994c602b105608f277c6fc066301d">handle_alert</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer, </div>
<div class="line"><a name="l03497"></a><span class="lineno"> 3497</span>&#160;         <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *record_header, <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data, <span class="keywordtype">size_t</span> data_length) {</div>
<div class="line"><a name="l03498"></a><span class="lineno"> 3498</span>&#160;  <span class="keywordtype">int</span> free_peer = 0;        <span class="comment">/* indicates whether to free peer */</span></div>
<div class="line"><a name="l03499"></a><span class="lineno"> 3499</span>&#160;</div>
<div class="line"><a name="l03500"></a><span class="lineno"> 3500</span>&#160;  <span class="keywordflow">if</span> (data_length &lt; 2)</div>
<div class="line"><a name="l03501"></a><span class="lineno"> 3501</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a>);</div>
<div class="line"><a name="l03502"></a><span class="lineno"> 3502</span>&#160;</div>
<div class="line"><a name="l03503"></a><span class="lineno"> 3503</span>&#160;  <a class="code" href="debug_8h.html#afde5692e7a590b0dd016d5753284c175">dtls_info</a>(<span class="stringliteral">&quot;** Alert: level %d, description %d\n&quot;</span>, data[0], data[1]);</div>
<div class="line"><a name="l03504"></a><span class="lineno"> 3504</span>&#160;</div>
<div class="line"><a name="l03505"></a><span class="lineno"> 3505</span>&#160;  <span class="keywordflow">if</span> (!peer) {</div>
<div class="line"><a name="l03506"></a><span class="lineno"> 3506</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;got an alert for an unknown peer, we probably already removed it, ignore it\n&quot;</span>);</div>
<div class="line"><a name="l03507"></a><span class="lineno"> 3507</span>&#160;    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03508"></a><span class="lineno"> 3508</span>&#160;  }</div>
<div class="line"><a name="l03509"></a><span class="lineno"> 3509</span>&#160;</div>
<div class="line"><a name="l03510"></a><span class="lineno"> 3510</span>&#160;  <span class="comment">/* The peer object is invalidated for FATAL alerts and close</span></div>
<div class="line"><a name="l03511"></a><span class="lineno"> 3511</span>&#160;<span class="comment">   * notifies. This is done in two steps.: First, remove the object</span></div>
<div class="line"><a name="l03512"></a><span class="lineno"> 3512</span>&#160;<span class="comment">   * from our list of peers. After that, the event handler callback is</span></div>
<div class="line"><a name="l03513"></a><span class="lineno"> 3513</span>&#160;<span class="comment">   * invoked with the still existing peer object. Finally, the storage</span></div>
<div class="line"><a name="l03514"></a><span class="lineno"> 3514</span>&#160;<span class="comment">   * used by peer is released.</span></div>
<div class="line"><a name="l03515"></a><span class="lineno"> 3515</span>&#160;<span class="comment">   */</span></div>
<div class="line"><a name="l03516"></a><span class="lineno"> 3516</span>&#160;  <span class="keywordflow">if</span> (data[0] == <a class="code" href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871fabd07bcf63c24aa5f1b9706a4197ceaf4">DTLS_ALERT_LEVEL_FATAL</a> || data[1] == <a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda6bbae4f2f3747af4cdbe80c4a1061800">DTLS_ALERT_CLOSE_NOTIFY</a>) {</div>
<div class="line"><a name="l03517"></a><span class="lineno"> 3517</span>&#160;    <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;%d invalidate peer\n&quot;</span>, data[1]);</div>
<div class="line"><a name="l03518"></a><span class="lineno"> 3518</span>&#160;    </div>
<div class="line"><a name="l03519"></a><span class="lineno"> 3519</span>&#160;<span class="preprocessor">#ifndef WITH_CONTIKI</span></div>
<div class="line"><a name="l03520"></a><span class="lineno"> 3520</span>&#160;<span class="preprocessor"></span>    <a class="code" href="dtls_8c.html#a0844494b0b76acb7bcf832ae74fb25c0">HASH_DEL_PEER</a>(ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>, peer);</div>
<div class="line"><a name="l03521"></a><span class="lineno"> 3521</span>&#160;<span class="preprocessor">#else </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03522"></a><span class="lineno"> 3522</span>&#160;<span class="preprocessor"></span>    <a class="code" href="t__list_8h.html#a10de2120be61f445c5989c983c1e133b">list_remove</a>(ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>, peer);</div>
<div class="line"><a name="l03523"></a><span class="lineno"> 3523</span>&#160;</div>
<div class="line"><a name="l03524"></a><span class="lineno"> 3524</span>&#160;<span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a name="l03525"></a><span class="lineno"> 3525</span>&#160;<span class="preprocessor"></span>    <a class="code" href="debug_8h.html#a1f464e950a4fa11e8821b5c725921a15">PRINTF</a>(<span class="stringliteral">&quot;removed peer [&quot;</span>);</div>
<div class="line"><a name="l03526"></a><span class="lineno"> 3526</span>&#160;    PRINT6ADDR(&amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>.<a class="code" href="structsession__t.html#a0bb4423cd29b415a4cf6c32d5d9a43e4">addr</a>);</div>
<div class="line"><a name="l03527"></a><span class="lineno"> 3527</span>&#160;    <a class="code" href="debug_8h.html#a1f464e950a4fa11e8821b5c725921a15">PRINTF</a>(<span class="stringliteral">&quot;]:%d\n&quot;</span>, uip_ntohs(peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>.port));</div>
<div class="line"><a name="l03528"></a><span class="lineno"> 3528</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l03529"></a><span class="lineno"> 3529</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03530"></a><span class="lineno"> 3530</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l03531"></a><span class="lineno"> 3531</span>&#160;    free_peer = 1;</div>
<div class="line"><a name="l03532"></a><span class="lineno"> 3532</span>&#160;</div>
<div class="line"><a name="l03533"></a><span class="lineno"> 3533</span>&#160;  }</div>
<div class="line"><a name="l03534"></a><span class="lineno"> 3534</span>&#160;</div>
<div class="line"><a name="l03535"></a><span class="lineno"> 3535</span>&#160;  (void)<a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, event, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, </div>
<div class="line"><a name="l03536"></a><span class="lineno"> 3536</span>&#160;         (<a class="code" href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871f">dtls_alert_level_t</a>)data[0], (<span class="keywordtype">unsigned</span> short)data[1]);</div>
<div class="line"><a name="l03537"></a><span class="lineno"> 3537</span>&#160;  <span class="keywordflow">switch</span> (data[1]) {</div>
<div class="line"><a name="l03538"></a><span class="lineno"> 3538</span>&#160;  <span class="keywordflow">case</span> <a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda6bbae4f2f3747af4cdbe80c4a1061800">DTLS_ALERT_CLOSE_NOTIFY</a>:</div>
<div class="line"><a name="l03539"></a><span class="lineno"> 3539</span>&#160;    <span class="comment">/* If state is DTLS_STATE_CLOSING, we have already sent a</span></div>
<div class="line"><a name="l03540"></a><span class="lineno"> 3540</span>&#160;<span class="comment">     * close_notify so, do not send that again. */</span></div>
<div class="line"><a name="l03541"></a><span class="lineno"> 3541</span>&#160;    <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> != <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a4aa3fcce37191fc2a915aa330efd381b">DTLS_STATE_CLOSING</a>) {</div>
<div class="line"><a name="l03542"></a><span class="lineno"> 3542</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a4aa3fcce37191fc2a915aa330efd381b">DTLS_STATE_CLOSING</a>;</div>
<div class="line"><a name="l03543"></a><span class="lineno"> 3543</span>&#160;      <a class="code" href="dtls_8c.html#a4aac4fa55afe2d19342136acaaaf9641">dtls_send_alert</a>(ctx, peer, <a class="code" href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871fabd07bcf63c24aa5f1b9706a4197ceaf4">DTLS_ALERT_LEVEL_FATAL</a>, <a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda6bbae4f2f3747af4cdbe80c4a1061800">DTLS_ALERT_CLOSE_NOTIFY</a>);</div>
<div class="line"><a name="l03544"></a><span class="lineno"> 3544</span>&#160;    } <span class="keywordflow">else</span></div>
<div class="line"><a name="l03545"></a><span class="lineno"> 3545</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a88bc0f5ff63003f57a59700dc4b55553">DTLS_STATE_CLOSED</a>;</div>
<div class="line"><a name="l03546"></a><span class="lineno"> 3546</span>&#160;    <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03547"></a><span class="lineno"> 3547</span>&#160;  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l03548"></a><span class="lineno"> 3548</span>&#160;    ;</div>
<div class="line"><a name="l03549"></a><span class="lineno"> 3549</span>&#160;  }</div>
<div class="line"><a name="l03550"></a><span class="lineno"> 3550</span>&#160;  </div>
<div class="line"><a name="l03551"></a><span class="lineno"> 3551</span>&#160;  <span class="keywordflow">if</span> (free_peer) {</div>
<div class="line"><a name="l03552"></a><span class="lineno"> 3552</span>&#160;    <a class="code" href="dtls_8c.html#a3742f5067d1b0693d6a41e70d4ecd5b5">dtls_stop_retransmission</a>(ctx, peer);</div>
<div class="line"><a name="l03553"></a><span class="lineno"> 3553</span>&#160;    <a class="code" href="dtls_8c.html#a81061928e291b6a3e7701f6a7f51b6f3">dtls_destroy_peer</a>(ctx, peer, 0);</div>
<div class="line"><a name="l03554"></a><span class="lineno"> 3554</span>&#160;  }</div>
<div class="line"><a name="l03555"></a><span class="lineno"> 3555</span>&#160;</div>
<div class="line"><a name="l03556"></a><span class="lineno"> 3556</span>&#160;  <span class="keywordflow">return</span> free_peer;</div>
<div class="line"><a name="l03557"></a><span class="lineno"> 3557</span>&#160;}</div>
<div class="line"><a name="l03558"></a><span class="lineno"> 3558</span>&#160;</div>
<div class="line"><a name="l03559"></a><span class="lineno"><a class="line" href="dtls_8c.html#a4c7a26bc520ac2ac88b4758e0fb84f1e"> 3559</a></span>&#160;<span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="dtls_8c.html#a4c7a26bc520ac2ac88b4758e0fb84f1e">dtls_alert_send_from_err</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer,</div>
<div class="line"><a name="l03560"></a><span class="lineno"> 3560</span>&#160;                    <a class="code" href="structsession__t.html">session_t</a> *session, <span class="keywordtype">int</span> err)</div>
<div class="line"><a name="l03561"></a><span class="lineno"> 3561</span>&#160;{</div>
<div class="line"><a name="l03562"></a><span class="lineno"> 3562</span>&#160;  <span class="keywordtype">int</span> level;</div>
<div class="line"><a name="l03563"></a><span class="lineno"> 3563</span>&#160;  <span class="keywordtype">int</span> desc;</div>
<div class="line"><a name="l03564"></a><span class="lineno"> 3564</span>&#160;</div>
<div class="line"><a name="l03565"></a><span class="lineno"> 3565</span>&#160;  <span class="keywordflow">if</span> (err &lt; -(1 &lt;&lt; 8) &amp;&amp; err &gt; -(3 &lt;&lt; 8)) {</div>
<div class="line"><a name="l03566"></a><span class="lineno"> 3566</span>&#160;    level = ((-err) &amp; 0xff00) &gt;&gt; 8;</div>
<div class="line"><a name="l03567"></a><span class="lineno"> 3567</span>&#160;    desc = (-err) &amp; 0xff;</div>
<div class="line"><a name="l03568"></a><span class="lineno"> 3568</span>&#160;    <span class="keywordflow">if</span> (!peer) {</div>
<div class="line"><a name="l03569"></a><span class="lineno"> 3569</span>&#160;      peer = <a class="code" href="dtls_8c.html#a70333bea2db35153177347b5c7700cab">dtls_get_peer</a>(ctx, session);</div>
<div class="line"><a name="l03570"></a><span class="lineno"> 3570</span>&#160;    }</div>
<div class="line"><a name="l03571"></a><span class="lineno"> 3571</span>&#160;    <span class="keywordflow">if</span> (peer) {</div>
<div class="line"><a name="l03572"></a><span class="lineno"> 3572</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a4aa3fcce37191fc2a915aa330efd381b">DTLS_STATE_CLOSING</a>;</div>
<div class="line"><a name="l03573"></a><span class="lineno"> 3573</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a4aac4fa55afe2d19342136acaaaf9641">dtls_send_alert</a>(ctx, peer, level, desc);</div>
<div class="line"><a name="l03574"></a><span class="lineno"> 3574</span>&#160;    }</div>
<div class="line"><a name="l03575"></a><span class="lineno"> 3575</span>&#160;  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (err == -1) {</div>
<div class="line"><a name="l03576"></a><span class="lineno"> 3576</span>&#160;    <span class="keywordflow">if</span> (!peer) {</div>
<div class="line"><a name="l03577"></a><span class="lineno"> 3577</span>&#160;      peer = <a class="code" href="dtls_8c.html#a70333bea2db35153177347b5c7700cab">dtls_get_peer</a>(ctx, session);</div>
<div class="line"><a name="l03578"></a><span class="lineno"> 3578</span>&#160;    }</div>
<div class="line"><a name="l03579"></a><span class="lineno"> 3579</span>&#160;    <span class="keywordflow">if</span> (peer) {</div>
<div class="line"><a name="l03580"></a><span class="lineno"> 3580</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a4aa3fcce37191fc2a915aa330efd381b">DTLS_STATE_CLOSING</a>;</div>
<div class="line"><a name="l03581"></a><span class="lineno"> 3581</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a4aac4fa55afe2d19342136acaaaf9641">dtls_send_alert</a>(ctx, peer, <a class="code" href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871fabd07bcf63c24aa5f1b9706a4197ceaf4">DTLS_ALERT_LEVEL_FATAL</a>, <a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a>);</div>
<div class="line"><a name="l03582"></a><span class="lineno"> 3582</span>&#160;    }</div>
<div class="line"><a name="l03583"></a><span class="lineno"> 3583</span>&#160;  }</div>
<div class="line"><a name="l03584"></a><span class="lineno"> 3584</span>&#160;  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l03585"></a><span class="lineno"> 3585</span>&#160;}</div>
<div class="line"><a name="l03586"></a><span class="lineno"> 3586</span>&#160;</div>
<div class="line"><a name="l03590"></a><span class="lineno"> 3590</span>&#160;<span class="keywordtype">int</span></div>
<div class="line"><a name="l03591"></a><span class="lineno"><a class="line" href="dtls_8h.html#ae272fea7269714fe7a67d6da64961731"> 3591</a></span>&#160;<a class="code" href="dtls_8c.html#ae272fea7269714fe7a67d6da64961731">dtls_handle_message</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, </div>
<div class="line"><a name="l03592"></a><span class="lineno"> 3592</span>&#160;            <a class="code" href="structsession__t.html">session_t</a> *session,</div>
<div class="line"><a name="l03593"></a><span class="lineno"> 3593</span>&#160;            <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *msg, <span class="keywordtype">int</span> msglen) {</div>
<div class="line"><a name="l03594"></a><span class="lineno"> 3594</span>&#160;  <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer = NULL;</div>
<div class="line"><a name="l03595"></a><span class="lineno"> 3595</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rlen;        <span class="comment">/* record length */</span></div>
<div class="line"><a name="l03596"></a><span class="lineno"> 3596</span>&#160;  <a class="code" href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *data;          <span class="comment">/* (decrypted) payload */</span></div>
<div class="line"><a name="l03597"></a><span class="lineno"> 3597</span>&#160;  <span class="keywordtype">int</span> data_length;      <span class="comment">/* length of decrypted payload </span></div>
<div class="line"><a name="l03598"></a><span class="lineno"> 3598</span>&#160;<span class="comment">                   (without MAC and padding) */</span></div>
<div class="line"><a name="l03599"></a><span class="lineno"> 3599</span>&#160;  <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l03600"></a><span class="lineno"> 3600</span>&#160;</div>
<div class="line"><a name="l03601"></a><span class="lineno"> 3601</span>&#160;  <span class="comment">/* check if we have DTLS state for addr/port/ifindex */</span></div>
<div class="line"><a name="l03602"></a><span class="lineno"> 3602</span>&#160;  peer = <a class="code" href="dtls_8c.html#a70333bea2db35153177347b5c7700cab">dtls_get_peer</a>(ctx, session);</div>
<div class="line"><a name="l03603"></a><span class="lineno"> 3603</span>&#160;</div>
<div class="line"><a name="l03604"></a><span class="lineno"> 3604</span>&#160;  <span class="keywordflow">if</span> (!peer) {</div>
<div class="line"><a name="l03605"></a><span class="lineno"> 3605</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_handle_message: PEER NOT FOUND\n&quot;</span>);</div>
<div class="line"><a name="l03606"></a><span class="lineno"> 3606</span>&#160;    <a class="code" href="debug_8c.html#a66cb8756d40a3326315d9b5f003a5a76">dtls_dsrv_log_addr</a>(<a class="code" href="debug_8h.html#a5cae2fb7fec0dd9e63cf2d755642cd9da87f82ea2bdc3f03d9f6d3355a5f8a020">DTLS_LOG_DEBUG</a>, <span class="stringliteral">&quot;peer addr&quot;</span>, session);</div>
<div class="line"><a name="l03607"></a><span class="lineno"> 3607</span>&#160;  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03608"></a><span class="lineno"> 3608</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;dtls_handle_message: FOUND PEER\n&quot;</span>);</div>
<div class="line"><a name="l03609"></a><span class="lineno"> 3609</span>&#160;  }</div>
<div class="line"><a name="l03610"></a><span class="lineno"> 3610</span>&#160;</div>
<div class="line"><a name="l03611"></a><span class="lineno"> 3611</span>&#160;  <span class="keywordflow">while</span> ((rlen = <a class="code" href="dtls_8c.html#aaafa285eb634873480c0ff429edd8064">is_record</a>(msg,msglen))) {</div>
<div class="line"><a name="l03612"></a><span class="lineno"> 3612</span>&#160;    <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8">dtls_peer_type</a> role;</div>
<div class="line"><a name="l03613"></a><span class="lineno"> 3613</span>&#160;    <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35">dtls_state_t</a> state;</div>
<div class="line"><a name="l03614"></a><span class="lineno"> 3614</span>&#160;</div>
<div class="line"><a name="l03615"></a><span class="lineno"> 3615</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;got packet %d (%d bytes)\n&quot;</span>, msg[0], rlen);</div>
<div class="line"><a name="l03616"></a><span class="lineno"> 3616</span>&#160;    <span class="keywordflow">if</span> (peer) {</div>
<div class="line"><a name="l03617"></a><span class="lineno"> 3617</span>&#160;      data_length = <a class="code" href="dtls_8c.html#adc4e7aa5066240a362341bbdb998bc71">decrypt_verify</a>(peer, msg, rlen, &amp;data);</div>
<div class="line"><a name="l03618"></a><span class="lineno"> 3618</span>&#160;      <span class="keywordflow">if</span> (data_length &lt; 0) {</div>
<div class="line"><a name="l03619"></a><span class="lineno"> 3619</span>&#160;    <span class="keywordtype">int</span> err =  <a class="code" href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a>(<a class="code" href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda56a136f4d20b3ce9fb967eedb37371e0">DTLS_ALERT_DECRYPT_ERROR</a>);</div>
<div class="line"><a name="l03620"></a><span class="lineno"> 3620</span>&#160;        <a class="code" href="debug_8h.html#afde5692e7a590b0dd016d5753284c175">dtls_info</a>(<span class="stringliteral">&quot;decrypt_verify() failed\n&quot;</span>);</div>
<div class="line"><a name="l03621"></a><span class="lineno"> 3621</span>&#160;    <span class="keywordflow">if</span> (peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> &lt; <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a>) {</div>
<div class="line"><a name="l03622"></a><span class="lineno"> 3622</span>&#160;      <a class="code" href="dtls_8c.html#a4c7a26bc520ac2ac88b4758e0fb84f1e">dtls_alert_send_from_err</a>(ctx, peer, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, err);</div>
<div class="line"><a name="l03623"></a><span class="lineno"> 3623</span>&#160;      peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a88bc0f5ff63003f57a59700dc4b55553">DTLS_STATE_CLOSED</a>;</div>
<div class="line"><a name="l03624"></a><span class="lineno"> 3624</span>&#160;      <span class="comment">/* dtls_stop_retransmission(ctx, peer); */</span></div>
<div class="line"><a name="l03625"></a><span class="lineno"> 3625</span>&#160;      <a class="code" href="dtls_8c.html#a81061928e291b6a3e7701f6a7f51b6f3">dtls_destroy_peer</a>(ctx, peer, 1);</div>
<div class="line"><a name="l03626"></a><span class="lineno"> 3626</span>&#160;    }</div>
<div class="line"><a name="l03627"></a><span class="lineno"> 3627</span>&#160;        <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03628"></a><span class="lineno"> 3628</span>&#160;      }</div>
<div class="line"><a name="l03629"></a><span class="lineno"> 3629</span>&#160;      role = peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a>;</div>
<div class="line"><a name="l03630"></a><span class="lineno"> 3630</span>&#160;      state = peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a>;</div>
<div class="line"><a name="l03631"></a><span class="lineno"> 3631</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03632"></a><span class="lineno"> 3632</span>&#160;      <span class="comment">/* is_record() ensures that msg contains at least a record header */</span></div>
<div class="line"><a name="l03633"></a><span class="lineno"> 3633</span>&#160;      data = msg + <a class="code" href="dtls_8c.html#ae97c368900c13dc7074c09e8848afa8f">DTLS_RH_LENGTH</a>;</div>
<div class="line"><a name="l03634"></a><span class="lineno"> 3634</span>&#160;      data_length = rlen - <a class="code" href="dtls_8c.html#ae97c368900c13dc7074c09e8848afa8f">DTLS_RH_LENGTH</a>;</div>
<div class="line"><a name="l03635"></a><span class="lineno"> 3635</span>&#160;      state = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a84b76c7a571c4b1d659e26d4e540c151">DTLS_STATE_WAIT_CLIENTHELLO</a>;</div>
<div class="line"><a name="l03636"></a><span class="lineno"> 3636</span>&#160;      role = <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a>;</div>
<div class="line"><a name="l03637"></a><span class="lineno"> 3637</span>&#160;    }</div>
<div class="line"><a name="l03638"></a><span class="lineno"> 3638</span>&#160;</div>
<div class="line"><a name="l03639"></a><span class="lineno"> 3639</span>&#160;    <a class="code" href="debug_8h.html#a24b1e8ecaa65f684d879ed9d5c37119d">dtls_debug_hexdump</a>(<span class="stringliteral">&quot;receive header&quot;</span>, msg, <span class="keyword">sizeof</span>(<a class="code" href="dtls_8h.html#a81936df7abb2c16aa897e3018aa24399">dtls_record_header_t</a>));</div>
<div class="line"><a name="l03640"></a><span class="lineno"> 3640</span>&#160;    <a class="code" href="debug_8h.html#a24b1e8ecaa65f684d879ed9d5c37119d">dtls_debug_hexdump</a>(<span class="stringliteral">&quot;receive unencrypted&quot;</span>, data, data_length);</div>
<div class="line"><a name="l03641"></a><span class="lineno"> 3641</span>&#160;</div>
<div class="line"><a name="l03642"></a><span class="lineno"> 3642</span>&#160;    <span class="comment">/* Handle received record according to the first byte of the</span></div>
<div class="line"><a name="l03643"></a><span class="lineno"> 3643</span>&#160;<span class="comment">     * message, i.e. the subprotocol. We currently do not support</span></div>
<div class="line"><a name="l03644"></a><span class="lineno"> 3644</span>&#160;<span class="comment">     * combining multiple fragments of one type into a single</span></div>
<div class="line"><a name="l03645"></a><span class="lineno"> 3645</span>&#160;<span class="comment">     * record. */</span></div>
<div class="line"><a name="l03646"></a><span class="lineno"> 3646</span>&#160;</div>
<div class="line"><a name="l03647"></a><span class="lineno"> 3647</span>&#160;    <span class="keywordflow">switch</span> (msg[0]) {</div>
<div class="line"><a name="l03648"></a><span class="lineno"> 3648</span>&#160;</div>
<div class="line"><a name="l03649"></a><span class="lineno"> 3649</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a3114c327a12e3850e97c4cf8a0cc5c9d">DTLS_CT_CHANGE_CIPHER_SPEC</a>:</div>
<div class="line"><a name="l03650"></a><span class="lineno"> 3650</span>&#160;      <span class="keywordflow">if</span> (peer) {</div>
<div class="line"><a name="l03651"></a><span class="lineno"> 3651</span>&#160;        <a class="code" href="dtls_8c.html#a3742f5067d1b0693d6a41e70d4ecd5b5">dtls_stop_retransmission</a>(ctx, peer);</div>
<div class="line"><a name="l03652"></a><span class="lineno"> 3652</span>&#160;      }</div>
<div class="line"><a name="l03653"></a><span class="lineno"> 3653</span>&#160;      err = <a class="code" href="dtls_8c.html#a4d7a16c9d0cd28666a2cc8ec471aa664">handle_ccs</a>(ctx, peer, msg, data, data_length);</div>
<div class="line"><a name="l03654"></a><span class="lineno"> 3654</span>&#160;      <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03655"></a><span class="lineno"> 3655</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error while handling ChangeCipherSpec message\n&quot;</span>);</div>
<div class="line"><a name="l03656"></a><span class="lineno"> 3656</span>&#160;    <a class="code" href="dtls_8c.html#a4c7a26bc520ac2ac88b4758e0fb84f1e">dtls_alert_send_from_err</a>(ctx, peer, session, err);</div>
<div class="line"><a name="l03657"></a><span class="lineno"> 3657</span>&#160;</div>
<div class="line"><a name="l03658"></a><span class="lineno"> 3658</span>&#160;    <span class="comment">/* invalidate peer */</span></div>
<div class="line"><a name="l03659"></a><span class="lineno"> 3659</span>&#160;    <a class="code" href="dtls_8c.html#a81061928e291b6a3e7701f6a7f51b6f3">dtls_destroy_peer</a>(ctx, peer, 1);</div>
<div class="line"><a name="l03660"></a><span class="lineno"> 3660</span>&#160;    peer = NULL;</div>
<div class="line"><a name="l03661"></a><span class="lineno"> 3661</span>&#160;</div>
<div class="line"><a name="l03662"></a><span class="lineno"> 3662</span>&#160;    <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03663"></a><span class="lineno"> 3663</span>&#160;      }</div>
<div class="line"><a name="l03664"></a><span class="lineno"> 3664</span>&#160;      <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03665"></a><span class="lineno"> 3665</span>&#160;</div>
<div class="line"><a name="l03666"></a><span class="lineno"> 3666</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#af8ce2230240b6d3c36b216ef459baff1">DTLS_CT_ALERT</a>:</div>
<div class="line"><a name="l03667"></a><span class="lineno"> 3667</span>&#160;      <span class="keywordflow">if</span> (peer) {</div>
<div class="line"><a name="l03668"></a><span class="lineno"> 3668</span>&#160;        <a class="code" href="dtls_8c.html#a3742f5067d1b0693d6a41e70d4ecd5b5">dtls_stop_retransmission</a>(ctx, peer);</div>
<div class="line"><a name="l03669"></a><span class="lineno"> 3669</span>&#160;      }</div>
<div class="line"><a name="l03670"></a><span class="lineno"> 3670</span>&#160;      err = <a class="code" href="dtls_8c.html#a445994c602b105608f277c6fc066301d">handle_alert</a>(ctx, peer, msg, data, data_length);</div>
<div class="line"><a name="l03671"></a><span class="lineno"> 3671</span>&#160;      <span class="keywordflow">if</span> (err &lt; 0 || err == 1) {</div>
<div class="line"><a name="l03672"></a><span class="lineno"> 3672</span>&#160;         <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;received alert, peer has been invalidated\n&quot;</span>);</div>
<div class="line"><a name="l03673"></a><span class="lineno"> 3673</span>&#160;         <span class="comment">/* handle alert has invalidated peer */</span></div>
<div class="line"><a name="l03674"></a><span class="lineno"> 3674</span>&#160;         peer = NULL;</div>
<div class="line"><a name="l03675"></a><span class="lineno"> 3675</span>&#160;         <span class="keywordflow">return</span> err &lt; 0 ?err:-1;</div>
<div class="line"><a name="l03676"></a><span class="lineno"> 3676</span>&#160;      }</div>
<div class="line"><a name="l03677"></a><span class="lineno"> 3677</span>&#160;      <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03678"></a><span class="lineno"> 3678</span>&#160;</div>
<div class="line"><a name="l03679"></a><span class="lineno"> 3679</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a76965db5ec449b3c8a9a54c24a4d45dc">DTLS_CT_HANDSHAKE</a>:</div>
<div class="line"><a name="l03680"></a><span class="lineno"> 3680</span>&#160;      <span class="comment">/* Handshake messages other than Finish must use the current</span></div>
<div class="line"><a name="l03681"></a><span class="lineno"> 3681</span>&#160;<span class="comment">       * epoch, Finish has epoch + 1. */</span></div>
<div class="line"><a name="l03682"></a><span class="lineno"> 3682</span>&#160;</div>
<div class="line"><a name="l03683"></a><span class="lineno"> 3683</span>&#160;      <span class="keywordflow">if</span> (peer) {</div>
<div class="line"><a name="l03684"></a><span class="lineno"> 3684</span>&#160;    uint16_t expected_epoch = <a class="code" href="peer_8h.html#a48abcad7383e1db957af9b4fed030d52">dtls_security_params</a>(peer)-&gt;<a class="code" href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">epoch</a>;</div>
<div class="line"><a name="l03685"></a><span class="lineno"> 3685</span>&#160;    uint16_t msg_epoch = </div>
<div class="line"><a name="l03686"></a><span class="lineno"> 3686</span>&#160;      <a class="code" href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a>(<a class="code" href="dtls_8c.html#a35d050593196252c1826ac2e82cbac0b">DTLS_RECORD_HEADER</a>(msg)-&gt;epoch);</div>
<div class="line"><a name="l03687"></a><span class="lineno"> 3687</span>&#160;</div>
<div class="line"><a name="l03688"></a><span class="lineno"> 3688</span>&#160;    <span class="comment">/* The new security parameters must be used for all messages</span></div>
<div class="line"><a name="l03689"></a><span class="lineno"> 3689</span>&#160;<span class="comment">     * that are sent after the ChangeCipherSpec message. This</span></div>
<div class="line"><a name="l03690"></a><span class="lineno"> 3690</span>&#160;<span class="comment">     * means that the client&#39;s Finished message uses epoch + 1</span></div>
<div class="line"><a name="l03691"></a><span class="lineno"> 3691</span>&#160;<span class="comment">     * while the server is still in the old epoch.</span></div>
<div class="line"><a name="l03692"></a><span class="lineno"> 3692</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l03693"></a><span class="lineno"> 3693</span>&#160;    <span class="keywordflow">if</span> (role == <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a> &amp;&amp; state == <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a8c1ffc1652e7c5ba25239fe1f3a430ba">DTLS_STATE_WAIT_FINISHED</a>) {</div>
<div class="line"><a name="l03694"></a><span class="lineno"> 3694</span>&#160;      expected_epoch++;</div>
<div class="line"><a name="l03695"></a><span class="lineno"> 3695</span>&#160;    }</div>
<div class="line"><a name="l03696"></a><span class="lineno"> 3696</span>&#160;</div>
<div class="line"><a name="l03697"></a><span class="lineno"> 3697</span>&#160;    <span class="keywordflow">if</span> (expected_epoch != msg_epoch) {</div>
<div class="line"><a name="l03698"></a><span class="lineno"> 3698</span>&#160;      <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;Wrong epoch, expected %i, got: %i\n&quot;</span>,</div>
<div class="line"><a name="l03699"></a><span class="lineno"> 3699</span>&#160;            expected_epoch, msg_epoch);</div>
<div class="line"><a name="l03700"></a><span class="lineno"> 3700</span>&#160;      <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03701"></a><span class="lineno"> 3701</span>&#160;    }</div>
<div class="line"><a name="l03702"></a><span class="lineno"> 3702</span>&#160;      }</div>
<div class="line"><a name="l03703"></a><span class="lineno"> 3703</span>&#160;</div>
<div class="line"><a name="l03704"></a><span class="lineno"> 3704</span>&#160;      err = <a class="code" href="dtls_8c.html#ab199f50f39a96464ff7b532f2635ce9d">handle_handshake</a>(ctx, peer, session, role, state, data, data_length);</div>
<div class="line"><a name="l03705"></a><span class="lineno"> 3705</span>&#160;      <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03706"></a><span class="lineno"> 3706</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;error while handling handshake packet\n&quot;</span>);</div>
<div class="line"><a name="l03707"></a><span class="lineno"> 3707</span>&#160;    <a class="code" href="dtls_8c.html#a4c7a26bc520ac2ac88b4758e0fb84f1e">dtls_alert_send_from_err</a>(ctx, peer, session, err);</div>
<div class="line"><a name="l03708"></a><span class="lineno"> 3708</span>&#160;    <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l03709"></a><span class="lineno"> 3709</span>&#160;      }</div>
<div class="line"><a name="l03710"></a><span class="lineno"> 3710</span>&#160;      <span class="keywordflow">if</span> (peer &amp;&amp; peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> == <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a>) {</div>
<div class="line"><a name="l03711"></a><span class="lineno"> 3711</span>&#160;    <span class="comment">/* stop retransmissions */</span></div>
<div class="line"><a name="l03712"></a><span class="lineno"> 3712</span>&#160;    <a class="code" href="dtls_8c.html#a3742f5067d1b0693d6a41e70d4ecd5b5">dtls_stop_retransmission</a>(ctx, peer);</div>
<div class="line"><a name="l03713"></a><span class="lineno"> 3713</span>&#160;    <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, event, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, 0, <a class="code" href="alert_8h.html#a5bed06f27f571d7c7d9b9f212c3a0b22">DTLS_EVENT_CONNECTED</a>);</div>
<div class="line"><a name="l03714"></a><span class="lineno"> 3714</span>&#160;      }</div>
<div class="line"><a name="l03715"></a><span class="lineno"> 3715</span>&#160;      <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03716"></a><span class="lineno"> 3716</span>&#160;</div>
<div class="line"><a name="l03717"></a><span class="lineno"> 3717</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="dtls_8h.html#a2e3ff1e96b8b7db8a3648beba35bfd0c">DTLS_CT_APPLICATION_DATA</a>:</div>
<div class="line"><a name="l03718"></a><span class="lineno"> 3718</span>&#160;      <a class="code" href="debug_8h.html#afde5692e7a590b0dd016d5753284c175">dtls_info</a>(<span class="stringliteral">&quot;** application data:\n&quot;</span>);</div>
<div class="line"><a name="l03719"></a><span class="lineno"> 3719</span>&#160;      <span class="keywordflow">if</span> (!peer) {</div>
<div class="line"><a name="l03720"></a><span class="lineno"> 3720</span>&#160;        <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;no peer available, send an alert\n&quot;</span>);</div>
<div class="line"><a name="l03721"></a><span class="lineno"> 3721</span>&#160;        <span class="comment">// TODO: should we send a alert here?</span></div>
<div class="line"><a name="l03722"></a><span class="lineno"> 3722</span>&#160;        <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l03723"></a><span class="lineno"> 3723</span>&#160;      }</div>
<div class="line"><a name="l03724"></a><span class="lineno"> 3724</span>&#160;      <a class="code" href="dtls_8c.html#a3742f5067d1b0693d6a41e70d4ecd5b5">dtls_stop_retransmission</a>(ctx, peer);</div>
<div class="line"><a name="l03725"></a><span class="lineno"> 3725</span>&#160;      <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, read, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, data, data_length);</div>
<div class="line"><a name="l03726"></a><span class="lineno"> 3726</span>&#160;      <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l03727"></a><span class="lineno"> 3727</span>&#160;    <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l03728"></a><span class="lineno"> 3728</span>&#160;      <a class="code" href="debug_8h.html#afde5692e7a590b0dd016d5753284c175">dtls_info</a>(<span class="stringliteral">&quot;dropped unknown message of type %d\n&quot;</span>,msg[0]);</div>
<div class="line"><a name="l03729"></a><span class="lineno"> 3729</span>&#160;    }</div>
<div class="line"><a name="l03730"></a><span class="lineno"> 3730</span>&#160;</div>
<div class="line"><a name="l03731"></a><span class="lineno"> 3731</span>&#160;    <span class="comment">/* advance msg by length of ciphertext */</span></div>
<div class="line"><a name="l03732"></a><span class="lineno"> 3732</span>&#160;    msg += rlen;</div>
<div class="line"><a name="l03733"></a><span class="lineno"> 3733</span>&#160;    msglen -= rlen;</div>
<div class="line"><a name="l03734"></a><span class="lineno"> 3734</span>&#160;  }</div>
<div class="line"><a name="l03735"></a><span class="lineno"> 3735</span>&#160;</div>
<div class="line"><a name="l03736"></a><span class="lineno"> 3736</span>&#160;  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l03737"></a><span class="lineno"> 3737</span>&#160;}</div>
<div class="line"><a name="l03738"></a><span class="lineno"> 3738</span>&#160;</div>
<div class="line"><a name="l03739"></a><span class="lineno"> 3739</span>&#160;<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *</div>
<div class="line"><a name="l03740"></a><span class="lineno"><a class="line" href="dtls_8h.html#a11f53d301448aa8f1dbcfaf77441bd9c"> 3740</a></span>&#160;<a class="code" href="dtls_8c.html#a11f53d301448aa8f1dbcfaf77441bd9c">dtls_new_context</a>(<span class="keywordtype">void</span> *app_data) {</div>
<div class="line"><a name="l03741"></a><span class="lineno"> 3741</span>&#160;  <a class="code" href="structdtls__context__t.html">dtls_context_t</a> *c;</div>
<div class="line"><a name="l03742"></a><span class="lineno"> 3742</span>&#160;  <a class="code" href="group__clock.html#gaded617551180951f4841969e396a8012">dtls_tick_t</a> now;</div>
<div class="line"><a name="l03743"></a><span class="lineno"> 3743</span>&#160;<span class="preprocessor">#ifndef WITH_CONTIKI</span></div>
<div class="line"><a name="l03744"></a><span class="lineno"> 3744</span>&#160;<span class="preprocessor"></span>  FILE *urandom = fopen(<span class="stringliteral">&quot;/dev/urandom&quot;</span>, <span class="stringliteral">&quot;r&quot;</span>);</div>
<div class="line"><a name="l03745"></a><span class="lineno"> 3745</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> buf[<span class="keyword">sizeof</span>(<span class="keywordtype">unsigned</span> long)];</div>
<div class="line"><a name="l03746"></a><span class="lineno"> 3746</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03747"></a><span class="lineno"> 3747</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l03748"></a><span class="lineno"> 3748</span>&#160;  <a class="code" href="group__clock.html#ga1834985745ba5d3dd03f7e7498e3a304">dtls_ticks</a>(&amp;now);</div>
<div class="line"><a name="l03749"></a><span class="lineno"> 3749</span>&#160;<span class="preprocessor">#ifdef WITH_CONTIKI</span></div>
<div class="line"><a name="l03750"></a><span class="lineno"> 3750</span>&#160;<span class="preprocessor"></span>  <span class="comment">/* FIXME: need something better to init PRNG here */</span></div>
<div class="line"><a name="l03751"></a><span class="lineno"> 3751</span>&#160;  <a class="code" href="group__prng.html#gac68680277206146d06c9e5468f260ee0">dtls_prng_init</a>(now);</div>
<div class="line"><a name="l03752"></a><span class="lineno"> 3752</span>&#160;<span class="preprocessor">#else </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03753"></a><span class="lineno"> 3753</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">if</span> (!urandom) {</div>
<div class="line"><a name="l03754"></a><span class="lineno"> 3754</span>&#160;    <a class="code" href="debug_8h.html#a94fa8dba0861075ba507ea0417fd83c8">dtls_emerg</a>(<span class="stringliteral">&quot;cannot initialize PRNG\n&quot;</span>);</div>
<div class="line"><a name="l03755"></a><span class="lineno"> 3755</span>&#160;    <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l03756"></a><span class="lineno"> 3756</span>&#160;  }</div>
<div class="line"><a name="l03757"></a><span class="lineno"> 3757</span>&#160;</div>
<div class="line"><a name="l03758"></a><span class="lineno"> 3758</span>&#160;  <span class="keywordflow">if</span> (fread(buf, 1, <span class="keyword">sizeof</span>(buf), urandom) != <span class="keyword">sizeof</span>(buf)) {</div>
<div class="line"><a name="l03759"></a><span class="lineno"> 3759</span>&#160;    <a class="code" href="debug_8h.html#a94fa8dba0861075ba507ea0417fd83c8">dtls_emerg</a>(<span class="stringliteral">&quot;cannot initialize PRNG\n&quot;</span>);</div>
<div class="line"><a name="l03760"></a><span class="lineno"> 3760</span>&#160;    <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l03761"></a><span class="lineno"> 3761</span>&#160;  }</div>
<div class="line"><a name="l03762"></a><span class="lineno"> 3762</span>&#160;</div>
<div class="line"><a name="l03763"></a><span class="lineno"> 3763</span>&#160;  fclose(urandom);</div>
<div class="line"><a name="l03764"></a><span class="lineno"> 3764</span>&#160;  <a class="code" href="group__prng.html#gac68680277206146d06c9e5468f260ee0">dtls_prng_init</a>((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)*buf);</div>
<div class="line"><a name="l03765"></a><span class="lineno"> 3765</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03766"></a><span class="lineno"> 3766</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l03767"></a><span class="lineno"> 3767</span>&#160;  c = <a class="code" href="dtls_8c.html#a9e02f1c6e70dab40e56d5131a259521a">malloc_context</a>();</div>
<div class="line"><a name="l03768"></a><span class="lineno"> 3768</span>&#160;  <span class="keywordflow">if</span> (!c)</div>
<div class="line"><a name="l03769"></a><span class="lineno"> 3769</span>&#160;    <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l03770"></a><span class="lineno"> 3770</span>&#160;</div>
<div class="line"><a name="l03771"></a><span class="lineno"> 3771</span>&#160;  memset(c, 0, <span class="keyword">sizeof</span>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a>));</div>
<div class="line"><a name="l03772"></a><span class="lineno"> 3772</span>&#160;  c-&gt;<a class="code" href="structdtls__context__t.html#ab37722ec6b82dd3120827812f212a51e">app</a> = app_data;</div>
<div class="line"><a name="l03773"></a><span class="lineno"> 3773</span>&#160;  </div>
<div class="line"><a name="l03774"></a><span class="lineno"> 3774</span>&#160;  <a class="code" href="t__list_8h.html#adcb86fe4485a0f8ea79541117641f730">LIST_STRUCT_INIT</a>(c, sendqueue);</div>
<div class="line"><a name="l03775"></a><span class="lineno"> 3775</span>&#160;</div>
<div class="line"><a name="l03776"></a><span class="lineno"> 3776</span>&#160;<span class="preprocessor">#ifdef WITH_CONTIKI</span></div>
<div class="line"><a name="l03777"></a><span class="lineno"> 3777</span>&#160;<span class="preprocessor"></span>  <a class="code" href="t__list_8h.html#adcb86fe4485a0f8ea79541117641f730">LIST_STRUCT_INIT</a>(c, peers);</div>
<div class="line"><a name="l03778"></a><span class="lineno"> 3778</span>&#160;  <span class="comment">/* LIST_STRUCT_INIT(c, key_store); */</span></div>
<div class="line"><a name="l03779"></a><span class="lineno"> 3779</span>&#160;  </div>
<div class="line"><a name="l03780"></a><span class="lineno"> 3780</span>&#160;  process_start(&amp;dtls_retransmit_process, (<span class="keywordtype">char</span> *)c);</div>
<div class="line"><a name="l03781"></a><span class="lineno"> 3781</span>&#160;  PROCESS_CONTEXT_BEGIN(&amp;dtls_retransmit_process);</div>
<div class="line"><a name="l03782"></a><span class="lineno"> 3782</span>&#160;  <span class="comment">/* the retransmit timer must be initialized to some large value */</span></div>
<div class="line"><a name="l03783"></a><span class="lineno"> 3783</span>&#160;  etimer_set(&amp;c-&gt;retransmit_timer, 0xFFFF);</div>
<div class="line"><a name="l03784"></a><span class="lineno"> 3784</span>&#160;  PROCESS_CONTEXT_END(&amp;coap_retransmit_process);</div>
<div class="line"><a name="l03785"></a><span class="lineno"> 3785</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03786"></a><span class="lineno"> 3786</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l03787"></a><span class="lineno"> 3787</span>&#160;  <span class="keywordflow">if</span> (<a class="code" href="group__prng.html#ga3f4036a1abfcec552ab583a2dc37be6c">dtls_prng</a>(c-&gt;<a class="code" href="structdtls__context__t.html#adb7dc6a53a7e00f2c4bbf726973e002f">cookie_secret</a>, <a class="code" href="dtls_8h.html#a44ec206b1d84aa3d83281a92ed7cc238">DTLS_COOKIE_SECRET_LENGTH</a>))</div>
<div class="line"><a name="l03788"></a><span class="lineno"> 3788</span>&#160;    c-&gt;<a class="code" href="structdtls__context__t.html#a3f26099dbb3588ae9a86d26f69ec08f8">cookie_secret_age</a> = now;</div>
<div class="line"><a name="l03789"></a><span class="lineno"> 3789</span>&#160;  <span class="keywordflow">else</span> </div>
<div class="line"><a name="l03790"></a><span class="lineno"> 3790</span>&#160;    <span class="keywordflow">goto</span> error;</div>
<div class="line"><a name="l03791"></a><span class="lineno"> 3791</span>&#160;  </div>
<div class="line"><a name="l03792"></a><span class="lineno"> 3792</span>&#160;  <span class="keywordflow">return</span> c;</div>
<div class="line"><a name="l03793"></a><span class="lineno"> 3793</span>&#160;</div>
<div class="line"><a name="l03794"></a><span class="lineno"> 3794</span>&#160; error:</div>
<div class="line"><a name="l03795"></a><span class="lineno"> 3795</span>&#160;  <a class="code" href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a>(<span class="stringliteral">&quot;cannot create DTLS context\n&quot;</span>);</div>
<div class="line"><a name="l03796"></a><span class="lineno"> 3796</span>&#160;  <span class="keywordflow">if</span> (c)</div>
<div class="line"><a name="l03797"></a><span class="lineno"> 3797</span>&#160;    <a class="code" href="dtls_8c.html#a3171c099d25ed29e31326526b8e1de84">dtls_free_context</a>(c);</div>
<div class="line"><a name="l03798"></a><span class="lineno"> 3798</span>&#160;  <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l03799"></a><span class="lineno"> 3799</span>&#160;}</div>
<div class="line"><a name="l03800"></a><span class="lineno"> 3800</span>&#160;</div>
<div class="line"><a name="l03801"></a><span class="lineno"> 3801</span>&#160;<span class="keywordtype">void</span></div>
<div class="line"><a name="l03802"></a><span class="lineno"><a class="line" href="dtls_8h.html#a3171c099d25ed29e31326526b8e1de84"> 3802</a></span>&#160;<a class="code" href="dtls_8c.html#a3171c099d25ed29e31326526b8e1de84">dtls_free_context</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx) {</div>
<div class="line"><a name="l03803"></a><span class="lineno"> 3803</span>&#160;  <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *p;</div>
<div class="line"><a name="l03804"></a><span class="lineno"> 3804</span>&#160;</div>
<div class="line"><a name="l03805"></a><span class="lineno"> 3805</span>&#160;  <span class="keywordflow">if</span> (!ctx) {</div>
<div class="line"><a name="l03806"></a><span class="lineno"> 3806</span>&#160;    <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03807"></a><span class="lineno"> 3807</span>&#160;  }</div>
<div class="line"><a name="l03808"></a><span class="lineno"> 3808</span>&#160;</div>
<div class="line"><a name="l03809"></a><span class="lineno"> 3809</span>&#160;<span class="preprocessor">#ifndef WITH_CONTIKI</span></div>
<div class="line"><a name="l03810"></a><span class="lineno"> 3810</span>&#160;<span class="preprocessor"></span>  <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *tmp;</div>
<div class="line"><a name="l03811"></a><span class="lineno"> 3811</span>&#160;</div>
<div class="line"><a name="l03812"></a><span class="lineno"> 3812</span>&#160;  <span class="keywordflow">if</span> (ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>) {</div>
<div class="line"><a name="l03813"></a><span class="lineno"> 3813</span>&#160;    <a class="code" href="uthash_8h.html#a4d524042f1fcb976d8bccae9e4cc63d6">HASH_ITER</a>(hh, ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>, p, tmp) {</div>
<div class="line"><a name="l03814"></a><span class="lineno"> 3814</span>&#160;      <a class="code" href="dtls_8c.html#a81061928e291b6a3e7701f6a7f51b6f3">dtls_destroy_peer</a>(ctx, p, 1);</div>
<div class="line"><a name="l03815"></a><span class="lineno"> 3815</span>&#160;    }</div>
<div class="line"><a name="l03816"></a><span class="lineno"> 3816</span>&#160;  }</div>
<div class="line"><a name="l03817"></a><span class="lineno"> 3817</span>&#160;<span class="preprocessor">#else </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03818"></a><span class="lineno"> 3818</span>&#160;<span class="preprocessor"></span>  <span class="keywordflow">for</span> (p = <a class="code" href="t__list_8h.html#adb42e31bb4fe0df6ec1aa3494902968d">list_head</a>(ctx-&gt;<a class="code" href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">peers</a>); p; p = <a class="code" href="t__list_8h.html#ae7f0bdad2409695760ffd8de55b6a99b">list_item_next</a>(p))</div>
<div class="line"><a name="l03819"></a><span class="lineno"> 3819</span>&#160;    <a class="code" href="dtls_8c.html#a81061928e291b6a3e7701f6a7f51b6f3">dtls_destroy_peer</a>(ctx, p, 1);</div>
<div class="line"><a name="l03820"></a><span class="lineno"> 3820</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l03821"></a><span class="lineno"> 3821</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l03822"></a><span class="lineno"> 3822</span>&#160;  <a class="code" href="dtls_8c.html#aa2f1fb16f297640b319ff0d864139ea5">free_context</a>(ctx);</div>
<div class="line"><a name="l03823"></a><span class="lineno"> 3823</span>&#160;}</div>
<div class="line"><a name="l03824"></a><span class="lineno"> 3824</span>&#160;</div>
<div class="line"><a name="l03825"></a><span class="lineno"> 3825</span>&#160;<span class="keywordtype">int</span></div>
<div class="line"><a name="l03826"></a><span class="lineno"><a class="line" href="dtls_8h.html#ad60bf1197fa1a074f91aed508cfefa62"> 3826</a></span>&#160;<a class="code" href="dtls_8c.html#ad60bf1197fa1a074f91aed508cfefa62">dtls_connect_peer</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer) {</div>
<div class="line"><a name="l03827"></a><span class="lineno"> 3827</span>&#160;  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l03828"></a><span class="lineno"> 3828</span>&#160;</div>
<div class="line"><a name="l03829"></a><span class="lineno"> 3829</span>&#160;  assert(peer);</div>
<div class="line"><a name="l03830"></a><span class="lineno"> 3830</span>&#160;  <span class="keywordflow">if</span> (!peer)</div>
<div class="line"><a name="l03831"></a><span class="lineno"> 3831</span>&#160;    <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l03832"></a><span class="lineno"> 3832</span>&#160;</div>
<div class="line"><a name="l03833"></a><span class="lineno"> 3833</span>&#160;  <span class="comment">/* check if the same peer is already in our list */</span></div>
<div class="line"><a name="l03834"></a><span class="lineno"> 3834</span>&#160;  <span class="keywordflow">if</span> (peer == <a class="code" href="dtls_8c.html#a70333bea2db35153177347b5c7700cab">dtls_get_peer</a>(ctx, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>)) {</div>
<div class="line"><a name="l03835"></a><span class="lineno"> 3835</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;found peer, try to re-connect\n&quot;</span>);</div>
<div class="line"><a name="l03836"></a><span class="lineno"> 3836</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="dtls_8c.html#a5676a0ceeeabd1ec38d378212f7af4a1">dtls_renegotiate</a>(ctx, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>);</div>
<div class="line"><a name="l03837"></a><span class="lineno"> 3837</span>&#160;  }</div>
<div class="line"><a name="l03838"></a><span class="lineno"> 3838</span>&#160;    </div>
<div class="line"><a name="l03839"></a><span class="lineno"> 3839</span>&#160;  <span class="comment">/* set local peer role to client, remote is server */</span></div>
<div class="line"><a name="l03840"></a><span class="lineno"> 3840</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">role</a> = <a class="code" href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8afd8391395303e28ee9b375232cb68a1e">DTLS_CLIENT</a>;</div>
<div class="line"><a name="l03841"></a><span class="lineno"> 3841</span>&#160;</div>
<div class="line"><a name="l03842"></a><span class="lineno"> 3842</span>&#160;  <a class="code" href="dtls_8c.html#ae4a2961a027959f907145f82ca9107c3">dtls_add_peer</a>(ctx, peer);</div>
<div class="line"><a name="l03843"></a><span class="lineno"> 3843</span>&#160;</div>
<div class="line"><a name="l03844"></a><span class="lineno"> 3844</span>&#160;  <span class="comment">/* send ClientHello with empty Cookie */</span></div>
<div class="line"><a name="l03845"></a><span class="lineno"> 3845</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a> = <a class="code" href="crypto_8c.html#a25930cdb27a6ffcf05e2c2a9c95a6af8">dtls_handshake_new</a>();</div>
<div class="line"><a name="l03846"></a><span class="lineno"> 3846</span>&#160;      <span class="keywordflow">if</span> (!peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>)</div>
<div class="line"><a name="l03847"></a><span class="lineno"> 3847</span>&#160;        <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l03848"></a><span class="lineno"> 3848</span>&#160;</div>
<div class="line"><a name="l03849"></a><span class="lineno"> 3849</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">mseq_r</a> = 0;</div>
<div class="line"><a name="l03850"></a><span class="lineno"> 3850</span>&#160;  peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>-&gt;<a class="code" href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">hs_state</a>.<a class="code" href="structdtls__hs__state__t.html#a694ce15382e7504a750a1b102ad8ec32">mseq_s</a> = 0;</div>
<div class="line"><a name="l03851"></a><span class="lineno"> 3851</span>&#160;  <a class="code" href="t__list_8h.html#adcb86fe4485a0f8ea79541117641f730">LIST_STRUCT_INIT</a>(peer-&gt;<a class="code" href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">handshake_params</a>, reorder_queue);</div>
<div class="line"><a name="l03852"></a><span class="lineno"> 3852</span>&#160;  res = <a class="code" href="dtls_8c.html#aecd3ffe8bf8a3970d3e091ce8e7c6476">dtls_send_client_hello</a>(ctx, peer, NULL, 0);</div>
<div class="line"><a name="l03853"></a><span class="lineno"> 3853</span>&#160;  <span class="keywordflow">if</span> (res &lt; 0)</div>
<div class="line"><a name="l03854"></a><span class="lineno"> 3854</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;cannot send ClientHello\n&quot;</span>);</div>
<div class="line"><a name="l03855"></a><span class="lineno"> 3855</span>&#160;  <span class="keywordflow">else</span> </div>
<div class="line"><a name="l03856"></a><span class="lineno"> 3856</span>&#160;    peer-&gt;<a class="code" href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">state</a> = <a class="code" href="state_8h.html#aea0e57fd5b857535960534b53361aa35a1a76f1e49c80d22df9673f8471d1ec53">DTLS_STATE_CLIENTHELLO</a>;</div>
<div class="line"><a name="l03857"></a><span class="lineno"> 3857</span>&#160;</div>
<div class="line"><a name="l03858"></a><span class="lineno"> 3858</span>&#160;  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l03859"></a><span class="lineno"> 3859</span>&#160;}</div>
<div class="line"><a name="l03860"></a><span class="lineno"> 3860</span>&#160;</div>
<div class="line"><a name="l03861"></a><span class="lineno"> 3861</span>&#160;<span class="keywordtype">int</span></div>
<div class="line"><a name="l03862"></a><span class="lineno"><a class="line" href="dtls_8h.html#a187f5e145bb869a732fbed426929a4e9"> 3862</a></span>&#160;<a class="code" href="dtls_8c.html#a187f5e145bb869a732fbed426929a4e9">dtls_connect</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *ctx, <span class="keyword">const</span> <a class="code" href="structsession__t.html">session_t</a> *dst) {</div>
<div class="line"><a name="l03863"></a><span class="lineno"> 3863</span>&#160;  <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer;</div>
<div class="line"><a name="l03864"></a><span class="lineno"> 3864</span>&#160;  <span class="keywordtype">int</span> res;</div>
<div class="line"><a name="l03865"></a><span class="lineno"> 3865</span>&#160;</div>
<div class="line"><a name="l03866"></a><span class="lineno"> 3866</span>&#160;  peer = <a class="code" href="dtls_8c.html#a70333bea2db35153177347b5c7700cab">dtls_get_peer</a>(ctx, dst);</div>
<div class="line"><a name="l03867"></a><span class="lineno"> 3867</span>&#160;  </div>
<div class="line"><a name="l03868"></a><span class="lineno"> 3868</span>&#160;  <span class="keywordflow">if</span> (!peer)</div>
<div class="line"><a name="l03869"></a><span class="lineno"> 3869</span>&#160;    peer = <a class="code" href="peer_8c.html#a209e22be64be13e116711829d21d864c">dtls_new_peer</a>(dst);</div>
<div class="line"><a name="l03870"></a><span class="lineno"> 3870</span>&#160;</div>
<div class="line"><a name="l03871"></a><span class="lineno"> 3871</span>&#160;  <span class="keywordflow">if</span> (!peer) {</div>
<div class="line"><a name="l03872"></a><span class="lineno"> 3872</span>&#160;    <a class="code" href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a>(<span class="stringliteral">&quot;cannot create new peer\n&quot;</span>);</div>
<div class="line"><a name="l03873"></a><span class="lineno"> 3873</span>&#160;    <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l03874"></a><span class="lineno"> 3874</span>&#160;  }</div>
<div class="line"><a name="l03875"></a><span class="lineno"> 3875</span>&#160;</div>
<div class="line"><a name="l03876"></a><span class="lineno"> 3876</span>&#160;  res = <a class="code" href="dtls_8c.html#ad60bf1197fa1a074f91aed508cfefa62">dtls_connect_peer</a>(ctx, peer);</div>
<div class="line"><a name="l03877"></a><span class="lineno"> 3877</span>&#160;</div>
<div class="line"><a name="l03878"></a><span class="lineno"> 3878</span>&#160;  <span class="comment">/* Invoke event callback to indicate connection attempt or</span></div>
<div class="line"><a name="l03879"></a><span class="lineno"> 3879</span>&#160;<span class="comment">   * re-negotiation. */</span></div>
<div class="line"><a name="l03880"></a><span class="lineno"> 3880</span>&#160;  <span class="keywordflow">if</span> (res &gt; 0) {</div>
<div class="line"><a name="l03881"></a><span class="lineno"> 3881</span>&#160;    <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, event, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, 0, <a class="code" href="alert_8h.html#aec2aa0683b1a39b4b1abba357b06f844">DTLS_EVENT_CONNECT</a>);</div>
<div class="line"><a name="l03882"></a><span class="lineno"> 3882</span>&#160;  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (res == 0) {</div>
<div class="line"><a name="l03883"></a><span class="lineno"> 3883</span>&#160;    <a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(ctx, event, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, 0, <a class="code" href="alert_8h.html#a06e52ce3a2909c8f5a3d47d2c0346124">DTLS_EVENT_RENEGOTIATE</a>);</div>
<div class="line"><a name="l03884"></a><span class="lineno"> 3884</span>&#160;  }</div>
<div class="line"><a name="l03885"></a><span class="lineno"> 3885</span>&#160;  </div>
<div class="line"><a name="l03886"></a><span class="lineno"> 3886</span>&#160;  <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l03887"></a><span class="lineno"> 3887</span>&#160;}</div>
<div class="line"><a name="l03888"></a><span class="lineno"> 3888</span>&#160;</div>
<div class="line"><a name="l03889"></a><span class="lineno"> 3889</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l03890"></a><span class="lineno"><a class="line" href="dtls_8c.html#aa57a9ccb1344c5baf8bd3adf35f3beeb"> 3890</a></span>&#160;<a class="code" href="dtls_8c.html#aa57a9ccb1344c5baf8bd3adf35f3beeb">dtls_retransmit</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *context, <a class="code" href="structnetq__t.html">netq_t</a> *node) {</div>
<div class="line"><a name="l03891"></a><span class="lineno"> 3891</span>&#160;  <span class="keywordflow">if</span> (!context || !node)</div>
<div class="line"><a name="l03892"></a><span class="lineno"> 3892</span>&#160;    <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03893"></a><span class="lineno"> 3893</span>&#160;</div>
<div class="line"><a name="l03894"></a><span class="lineno"> 3894</span>&#160;  <span class="comment">/* re-initialize timeout when maximum number of retransmissions are not reached yet */</span></div>
<div class="line"><a name="l03895"></a><span class="lineno"> 3895</span>&#160;  <span class="keywordflow">if</span> (node-&gt;<a class="code" href="structnetq__t.html#aacd03017f40248c2f48c2b7b9cd92dc8">retransmit_cnt</a> &lt; <a class="code" href="global_8h.html#a9fc59fb51c2e3cb4da6fb19bc8cad080">DTLS_DEFAULT_MAX_RETRANSMIT</a>) {</div>
<div class="line"><a name="l03896"></a><span class="lineno"> 3896</span>&#160;      <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> sendbuf[<a class="code" href="global_8h.html#acdbfba15eb1a5692e177d582b4ca1583">DTLS_MAX_BUF</a>];</div>
<div class="line"><a name="l03897"></a><span class="lineno"> 3897</span>&#160;      <span class="keywordtype">size_t</span> len = <span class="keyword">sizeof</span>(sendbuf);</div>
<div class="line"><a name="l03898"></a><span class="lineno"> 3898</span>&#160;      <span class="keywordtype">int</span> err;</div>
<div class="line"><a name="l03899"></a><span class="lineno"> 3899</span>&#160;      <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *data = node-&gt;<a class="code" href="structnetq__t.html#a5b4d387623df43fe25a3b11e9d4fb02c">data</a>;</div>
<div class="line"><a name="l03900"></a><span class="lineno"> 3900</span>&#160;      <span class="keywordtype">size_t</span> length = node-&gt;<a class="code" href="structnetq__t.html#ac72c9378282becab5a273f612f58c124">length</a>;</div>
<div class="line"><a name="l03901"></a><span class="lineno"> 3901</span>&#160;      <a class="code" href="group__clock.html#gaded617551180951f4841969e396a8012">dtls_tick_t</a> now;</div>
<div class="line"><a name="l03902"></a><span class="lineno"> 3902</span>&#160;      <a class="code" href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a> *security = <a class="code" href="peer_8h.html#af5de0315efd7e8c6b1aecf60078b2dd7">dtls_security_params_epoch</a>(node-&gt;<a class="code" href="structnetq__t.html#aaca5f6407bd7b3162d9ee7e7e7b8f0ff">peer</a>, node-&gt;<a class="code" href="structnetq__t.html#a9998944e43a39a2e5700156876a312e0">epoch</a>);</div>
<div class="line"><a name="l03903"></a><span class="lineno"> 3903</span>&#160;</div>
<div class="line"><a name="l03904"></a><span class="lineno"> 3904</span>&#160;      <a class="code" href="group__clock.html#ga1834985745ba5d3dd03f7e7498e3a304">dtls_ticks</a>(&amp;now);</div>
<div class="line"><a name="l03905"></a><span class="lineno"> 3905</span>&#160;      node-&gt;<a class="code" href="structnetq__t.html#aacd03017f40248c2f48c2b7b9cd92dc8">retransmit_cnt</a>++;</div>
<div class="line"><a name="l03906"></a><span class="lineno"> 3906</span>&#160;      node-&gt;<a class="code" href="structnetq__t.html#afe91256ff5267fc680b96efd3bd8635a">t</a> = now + (node-&gt;<a class="code" href="structnetq__t.html#ae0c2648acf87d1e6f2566bc3600771b6">timeout</a> &lt;&lt; node-&gt;<a class="code" href="structnetq__t.html#aacd03017f40248c2f48c2b7b9cd92dc8">retransmit_cnt</a>);</div>
<div class="line"><a name="l03907"></a><span class="lineno"> 3907</span>&#160;      <a class="code" href="group__netq.html#ga142c8e39fe2cd55250e3c1f0370dfe6b">netq_insert_node</a>(context-&gt;sendqueue, node);</div>
<div class="line"><a name="l03908"></a><span class="lineno"> 3908</span>&#160;      </div>
<div class="line"><a name="l03909"></a><span class="lineno"> 3909</span>&#160;      <span class="keywordflow">if</span> (node-&gt;<a class="code" href="structnetq__t.html#a13d74bc65c8879b894698935fbbe2246">type</a> == <a class="code" href="dtls_8h.html#a76965db5ec449b3c8a9a54c24a4d45dc">DTLS_CT_HANDSHAKE</a>) {</div>
<div class="line"><a name="l03910"></a><span class="lineno"> 3910</span>&#160;    <a class="code" href="dtls_8h.html#a5c6625ffcf61189392768253e8919a45">dtls_handshake_header_t</a> *hs_header = <a class="code" href="dtls_8c.html#a2cc930733d35ea870c7a0a131bee0d7a">DTLS_HANDSHAKE_HEADER</a>(data);</div>
<div class="line"><a name="l03911"></a><span class="lineno"> 3911</span>&#160;</div>
<div class="line"><a name="l03912"></a><span class="lineno"> 3912</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;** retransmit handshake packet of type: %s (%i)\n&quot;</span>,</div>
<div class="line"><a name="l03913"></a><span class="lineno"> 3913</span>&#160;               <a class="code" href="dtls_8c.html#a00707f0f82235a2432338e77dae0911d">dtls_handshake_type_to_name</a>(hs_header-&gt;msg_type), hs_header-&gt;msg_type);</div>
<div class="line"><a name="l03914"></a><span class="lineno"> 3914</span>&#160;      } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l03915"></a><span class="lineno"> 3915</span>&#160;    <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;** retransmit packet\n&quot;</span>);</div>
<div class="line"><a name="l03916"></a><span class="lineno"> 3916</span>&#160;      }</div>
<div class="line"><a name="l03917"></a><span class="lineno"> 3917</span>&#160;      </div>
<div class="line"><a name="l03918"></a><span class="lineno"> 3918</span>&#160;      err = <a class="code" href="dtls_8c.html#ab9733484b9a23775b1bc8b3d723282e5">dtls_prepare_record</a>(node-&gt;<a class="code" href="structnetq__t.html#aaca5f6407bd7b3162d9ee7e7e7b8f0ff">peer</a>, security, node-&gt;<a class="code" href="structnetq__t.html#a13d74bc65c8879b894698935fbbe2246">type</a>, &amp;data, &amp;length,</div>
<div class="line"><a name="l03919"></a><span class="lineno"> 3919</span>&#160;                1, sendbuf, &amp;len);</div>
<div class="line"><a name="l03920"></a><span class="lineno"> 3920</span>&#160;      <span class="keywordflow">if</span> (err &lt; 0) {</div>
<div class="line"><a name="l03921"></a><span class="lineno"> 3921</span>&#160;    <a class="code" href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a>(<span class="stringliteral">&quot;can not retransmit packet, err: %i\n&quot;</span>, err);</div>
<div class="line"><a name="l03922"></a><span class="lineno"> 3922</span>&#160;    <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03923"></a><span class="lineno"> 3923</span>&#160;      }</div>
<div class="line"><a name="l03924"></a><span class="lineno"> 3924</span>&#160;      <a class="code" href="debug_8h.html#a24b1e8ecaa65f684d879ed9d5c37119d">dtls_debug_hexdump</a>(<span class="stringliteral">&quot;retransmit header&quot;</span>, sendbuf,</div>
<div class="line"><a name="l03925"></a><span class="lineno"> 3925</span>&#160;             <span class="keyword">sizeof</span>(<a class="code" href="dtls_8h.html#a81936df7abb2c16aa897e3018aa24399">dtls_record_header_t</a>));</div>
<div class="line"><a name="l03926"></a><span class="lineno"> 3926</span>&#160;      <a class="code" href="debug_8h.html#a24b1e8ecaa65f684d879ed9d5c37119d">dtls_debug_hexdump</a>(<span class="stringliteral">&quot;retransmit unencrypted&quot;</span>, node-&gt;<a class="code" href="structnetq__t.html#a5b4d387623df43fe25a3b11e9d4fb02c">data</a>, node-&gt;<a class="code" href="structnetq__t.html#ac72c9378282becab5a273f612f58c124">length</a>);</div>
<div class="line"><a name="l03927"></a><span class="lineno"> 3927</span>&#160;</div>
<div class="line"><a name="l03928"></a><span class="lineno"> 3928</span>&#160;      (void)<a class="code" href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a>(context, write, &amp;node-&gt;<a class="code" href="structnetq__t.html#aaca5f6407bd7b3162d9ee7e7e7b8f0ff">peer</a>-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, sendbuf, len);</div>
<div class="line"><a name="l03929"></a><span class="lineno"> 3929</span>&#160;      <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l03930"></a><span class="lineno"> 3930</span>&#160;  }</div>
<div class="line"><a name="l03931"></a><span class="lineno"> 3931</span>&#160;</div>
<div class="line"><a name="l03932"></a><span class="lineno"> 3932</span>&#160;  <span class="comment">/* no more retransmissions, remove node from system */</span></div>
<div class="line"><a name="l03933"></a><span class="lineno"> 3933</span>&#160;  </div>
<div class="line"><a name="l03934"></a><span class="lineno"> 3934</span>&#160;  <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;** removed transaction\n&quot;</span>);</div>
<div class="line"><a name="l03935"></a><span class="lineno"> 3935</span>&#160;</div>
<div class="line"><a name="l03936"></a><span class="lineno"> 3936</span>&#160;  <span class="comment">/* And finally delete the node */</span></div>
<div class="line"><a name="l03937"></a><span class="lineno"> 3937</span>&#160;  <a class="code" href="group__netq.html#ga9ef9da1a2af266dadef83ddf6c8524d7">netq_node_free</a>(node);</div>
<div class="line"><a name="l03938"></a><span class="lineno"> 3938</span>&#160;}</div>
<div class="line"><a name="l03939"></a><span class="lineno"> 3939</span>&#160;</div>
<div class="line"><a name="l03940"></a><span class="lineno"> 3940</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l03941"></a><span class="lineno"><a class="line" href="dtls_8c.html#a3742f5067d1b0693d6a41e70d4ecd5b5"> 3941</a></span>&#160;<a class="code" href="dtls_8c.html#a3742f5067d1b0693d6a41e70d4ecd5b5">dtls_stop_retransmission</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *context, <a class="code" href="structdtls__peer__t.html">dtls_peer_t</a> *peer) {</div>
<div class="line"><a name="l03942"></a><span class="lineno"> 3942</span>&#160;  <a class="code" href="structnetq__t.html">netq_t</a> *node;</div>
<div class="line"><a name="l03943"></a><span class="lineno"> 3943</span>&#160;  node = <a class="code" href="t__list_8h.html#adb42e31bb4fe0df6ec1aa3494902968d">list_head</a>(context-&gt;sendqueue); </div>
<div class="line"><a name="l03944"></a><span class="lineno"> 3944</span>&#160;</div>
<div class="line"><a name="l03945"></a><span class="lineno"> 3945</span>&#160;  <span class="keywordflow">while</span> (node) {</div>
<div class="line"><a name="l03946"></a><span class="lineno"> 3946</span>&#160;    <span class="keywordflow">if</span> (<a class="code" href="session_8c.html#a96f4d60f388d56d37b3e69261bea2417">dtls_session_equals</a>(&amp;node-&gt;<a class="code" href="structnetq__t.html#aaca5f6407bd7b3162d9ee7e7e7b8f0ff">peer</a>-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>, &amp;peer-&gt;<a class="code" href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">session</a>)) {</div>
<div class="line"><a name="l03947"></a><span class="lineno"> 3947</span>&#160;      <a class="code" href="structnetq__t.html">netq_t</a> *tmp = node;</div>
<div class="line"><a name="l03948"></a><span class="lineno"> 3948</span>&#160;      node = <a class="code" href="t__list_8h.html#ae7f0bdad2409695760ffd8de55b6a99b">list_item_next</a>(node);</div>
<div class="line"><a name="l03949"></a><span class="lineno"> 3949</span>&#160;      <a class="code" href="t__list_8h.html#a10de2120be61f445c5989c983c1e133b">list_remove</a>(context-&gt;sendqueue, tmp);</div>
<div class="line"><a name="l03950"></a><span class="lineno"> 3950</span>&#160;      <a class="code" href="group__netq.html#ga9ef9da1a2af266dadef83ddf6c8524d7">netq_node_free</a>(tmp);</div>
<div class="line"><a name="l03951"></a><span class="lineno"> 3951</span>&#160;    } <span class="keywordflow">else</span></div>
<div class="line"><a name="l03952"></a><span class="lineno"> 3952</span>&#160;      node = <a class="code" href="t__list_8h.html#ae7f0bdad2409695760ffd8de55b6a99b">list_item_next</a>(node);    </div>
<div class="line"><a name="l03953"></a><span class="lineno"> 3953</span>&#160;  }</div>
<div class="line"><a name="l03954"></a><span class="lineno"> 3954</span>&#160;}</div>
<div class="line"><a name="l03955"></a><span class="lineno"> 3955</span>&#160;</div>
<div class="line"><a name="l03956"></a><span class="lineno"> 3956</span>&#160;<span class="keywordtype">void</span></div>
<div class="line"><a name="l03957"></a><span class="lineno"><a class="line" href="dtls_8h.html#ab50d1ee589e91d07032d0a65768dee82"> 3957</a></span>&#160;<a class="code" href="dtls_8c.html#ab50d1ee589e91d07032d0a65768dee82">dtls_check_retransmit</a>(<a class="code" href="structdtls__context__t.html">dtls_context_t</a> *context, <a class="code" href="group__clock.html#ga6e6c13e871b82d881a01d1bc8df69d23">clock_time_t</a> *next) {</div>
<div class="line"><a name="l03958"></a><span class="lineno"> 3958</span>&#160;  <a class="code" href="group__clock.html#gaded617551180951f4841969e396a8012">dtls_tick_t</a> now;</div>
<div class="line"><a name="l03959"></a><span class="lineno"> 3959</span>&#160;  <a class="code" href="structnetq__t.html">netq_t</a> *node = <a class="code" href="group__netq.html#gac769de2e30bcf2c2db89ff10822219d4">netq_head</a>(context-&gt;sendqueue);</div>
<div class="line"><a name="l03960"></a><span class="lineno"> 3960</span>&#160;</div>
<div class="line"><a name="l03961"></a><span class="lineno"> 3961</span>&#160;  <a class="code" href="group__clock.html#ga1834985745ba5d3dd03f7e7498e3a304">dtls_ticks</a>(&amp;now);</div>
<div class="line"><a name="l03962"></a><span class="lineno"> 3962</span>&#160;  <span class="keywordflow">while</span> (node &amp;&amp; node-&gt;<a class="code" href="structnetq__t.html#afe91256ff5267fc680b96efd3bd8635a">t</a> &lt;= now) {</div>
<div class="line"><a name="l03963"></a><span class="lineno"> 3963</span>&#160;    <a class="code" href="group__netq.html#ga108e6c43e524fd4b23a5d4731631fae3">netq_pop_first</a>(context-&gt;sendqueue);</div>
<div class="line"><a name="l03964"></a><span class="lineno"> 3964</span>&#160;    <a class="code" href="dtls_8c.html#aa57a9ccb1344c5baf8bd3adf35f3beeb">dtls_retransmit</a>(context, node);</div>
<div class="line"><a name="l03965"></a><span class="lineno"> 3965</span>&#160;    node = <a class="code" href="group__netq.html#gac769de2e30bcf2c2db89ff10822219d4">netq_head</a>(context-&gt;sendqueue);</div>
<div class="line"><a name="l03966"></a><span class="lineno"> 3966</span>&#160;  }</div>
<div class="line"><a name="l03967"></a><span class="lineno"> 3967</span>&#160;</div>
<div class="line"><a name="l03968"></a><span class="lineno"> 3968</span>&#160;  <span class="keywordflow">if</span> (next &amp;&amp; node)</div>
<div class="line"><a name="l03969"></a><span class="lineno"> 3969</span>&#160;    *next = node-&gt;<a class="code" href="structnetq__t.html#afe91256ff5267fc680b96efd3bd8635a">t</a>;</div>
<div class="line"><a name="l03970"></a><span class="lineno"> 3970</span>&#160;}</div>
<div class="line"><a name="l03971"></a><span class="lineno"> 3971</span>&#160;</div>
<div class="line"><a name="l03972"></a><span class="lineno"> 3972</span>&#160;<span class="preprocessor">#ifdef WITH_CONTIKI</span></div>
<div class="line"><a name="l03973"></a><span class="lineno"> 3973</span>&#160;<span class="preprocessor"></span><span class="comment">/*---------------------------------------------------------------------------*/</span></div>
<div class="line"><a name="l03974"></a><span class="lineno"> 3974</span>&#160;<span class="comment">/* message retransmission */</span></div>
<div class="line"><a name="l03975"></a><span class="lineno"> 3975</span>&#160;<span class="comment">/*---------------------------------------------------------------------------*/</span></div>
<div class="line"><a name="l03976"></a><span class="lineno"> 3976</span>&#160;PROCESS_THREAD(dtls_retransmit_process, ev, data)</div>
<div class="line"><a name="l03977"></a><span class="lineno"> 3977</span>&#160;{</div>
<div class="line"><a name="l03978"></a><span class="lineno"> 3978</span>&#160;  <a class="code" href="group__clock.html#ga6e6c13e871b82d881a01d1bc8df69d23">clock_time_t</a> now;</div>
<div class="line"><a name="l03979"></a><span class="lineno"> 3979</span>&#160;  <a class="code" href="structnetq__t.html">netq_t</a> *node;</div>
<div class="line"><a name="l03980"></a><span class="lineno"> 3980</span>&#160;</div>
<div class="line"><a name="l03981"></a><span class="lineno"> 3981</span>&#160;  PROCESS_BEGIN();</div>
<div class="line"><a name="l03982"></a><span class="lineno"> 3982</span>&#160;</div>
<div class="line"><a name="l03983"></a><span class="lineno"> 3983</span>&#160;  <a class="code" href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a>(<span class="stringliteral">&quot;Started DTLS retransmit process\r\n&quot;</span>);</div>
<div class="line"><a name="l03984"></a><span class="lineno"> 3984</span>&#160;</div>
<div class="line"><a name="l03985"></a><span class="lineno"> 3985</span>&#160;  <span class="keywordflow">while</span>(1) {</div>
<div class="line"><a name="l03986"></a><span class="lineno"> 3986</span>&#160;    PROCESS_YIELD();</div>
<div class="line"><a name="l03987"></a><span class="lineno"> 3987</span>&#160;    <span class="keywordflow">if</span> (ev == PROCESS_EVENT_TIMER) {</div>
<div class="line"><a name="l03988"></a><span class="lineno"> 3988</span>&#160;      <span class="keywordflow">if</span> (etimer_expired(&amp;the_dtls_context.retransmit_timer)) {</div>
<div class="line"><a name="l03989"></a><span class="lineno"> 3989</span>&#160;    </div>
<div class="line"><a name="l03990"></a><span class="lineno"> 3990</span>&#160;    node = <a class="code" href="t__list_8h.html#adb42e31bb4fe0df6ec1aa3494902968d">list_head</a>(the_dtls_context.sendqueue);</div>
<div class="line"><a name="l03991"></a><span class="lineno"> 3991</span>&#160;    </div>
<div class="line"><a name="l03992"></a><span class="lineno"> 3992</span>&#160;    now = clock_time();</div>
<div class="line"><a name="l03993"></a><span class="lineno"> 3993</span>&#160;    <span class="keywordflow">if</span> (node &amp;&amp; node-&gt;<a class="code" href="structnetq__t.html#afe91256ff5267fc680b96efd3bd8635a">t</a> &lt;= now) {</div>
<div class="line"><a name="l03994"></a><span class="lineno"> 3994</span>&#160;      <a class="code" href="dtls_8c.html#aa57a9ccb1344c5baf8bd3adf35f3beeb">dtls_retransmit</a>(&amp;the_dtls_context, <a class="code" href="t__list_8h.html#a5ba6a8506e0226ab945349e25ef65d56">list_pop</a>(the_dtls_context.sendqueue));</div>
<div class="line"><a name="l03995"></a><span class="lineno"> 3995</span>&#160;      node = <a class="code" href="t__list_8h.html#adb42e31bb4fe0df6ec1aa3494902968d">list_head</a>(the_dtls_context.sendqueue);</div>
<div class="line"><a name="l03996"></a><span class="lineno"> 3996</span>&#160;    }</div>
<div class="line"><a name="l03997"></a><span class="lineno"> 3997</span>&#160;</div>
<div class="line"><a name="l03998"></a><span class="lineno"> 3998</span>&#160;    <span class="comment">/* need to set timer to some value even if no nextpdu is available */</span></div>
<div class="line"><a name="l03999"></a><span class="lineno"> 3999</span>&#160;    <span class="keywordflow">if</span> (node) {</div>
<div class="line"><a name="l04000"></a><span class="lineno"> 4000</span>&#160;      etimer_set(&amp;the_dtls_context.retransmit_timer, </div>
<div class="line"><a name="l04001"></a><span class="lineno"> 4001</span>&#160;             node-&gt;<a class="code" href="structnetq__t.html#afe91256ff5267fc680b96efd3bd8635a">t</a> &lt;= now ? 1 : node-&gt;<a class="code" href="structnetq__t.html#afe91256ff5267fc680b96efd3bd8635a">t</a> - now);</div>
<div class="line"><a name="l04002"></a><span class="lineno"> 4002</span>&#160;    } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l04003"></a><span class="lineno"> 4003</span>&#160;      etimer_set(&amp;the_dtls_context.retransmit_timer, 0xFFFF);</div>
<div class="line"><a name="l04004"></a><span class="lineno"> 4004</span>&#160;    }</div>
<div class="line"><a name="l04005"></a><span class="lineno"> 4005</span>&#160;      } </div>
<div class="line"><a name="l04006"></a><span class="lineno"> 4006</span>&#160;    }</div>
<div class="line"><a name="l04007"></a><span class="lineno"> 4007</span>&#160;  }</div>
<div class="line"><a name="l04008"></a><span class="lineno"> 4008</span>&#160;  </div>
<div class="line"><a name="l04009"></a><span class="lineno"> 4009</span>&#160;  PROCESS_END();</div>
<div class="line"><a name="l04010"></a><span class="lineno"> 4010</span>&#160;}</div>
<div class="line"><a name="l04011"></a><span class="lineno"> 4011</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* WITH_CONTIKI */</span><span class="preprocessor"></span></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35a5c55da9c6de8eb986de811cf2135a1a0"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35a5c55da9c6de8eb986de811cf2135a1a0">DTLS_STATE_WAIT_SERVERHELLODONE</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00047">state.h:47</a></div></div>
<div class="ttc" id="dtls_8c_html_a3e132aba78de736930255d40ef3f2d34"><div class="ttname"><a href="dtls_8c.html#a3e132aba78de736930255d40ef3f2d34">CALL</a></div><div class="ttdeci">#define CALL(Context, which,...)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00174">dtls.c:174</a></div></div>
<div class="ttc" id="dtls_8c_html_afcca5dc5ebcc9eb8141ca0b49b647676"><div class="ttname"><a href="dtls_8c.html#afcca5dc5ebcc9eb8141ca0b49b647676">DTLS_SH_LENGTH</a></div><div class="ttdeci">#define DTLS_SH_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00079">dtls.c:79</a></div></div>
<div class="ttc" id="global_8h_html_a1ff555e0b1443c4cb4d17ac2161d89b2ac5b79ee16e8c0e46873fa63fdb1ab9ca"><div class="ttname"><a href="global_8h.html#a1ff555e0b1443c4cb4d17ac2161d89b2ac5b79ee16e8c0e46873fa63fdb1ab9ca">TLS_COMPRESSION_NULL</a></div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00082">global.h:82</a></div></div>
<div class="ttc" id="dtls_8c_html_a22ab7a79391c2204337237949d69dad8"><div class="ttname"><a href="dtls_8c.html#a22ab7a79391c2204337237949d69dad8">copy_hs_hash</a></div><div class="ttdeci">static void copy_hs_hash(dtls_peer_t *peer, dtls_hash_ctx *hs_hash)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01076">dtls.c:1076</a></div></div>
<div class="ttc" id="dtls_8c_html_a3bbccb275cb23e84c0a148a157955770"><div class="ttname"><a href="dtls_8c.html#a3bbccb275cb23e84c0a148a157955770">is_psk_supported</a></div><div class="ttdeci">static int is_psk_supported(dtls_context_t *ctx)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00481">dtls.c:481</a></div></div>
<div class="ttc" id="structnetq__t_html_aacd03017f40248c2f48c2b7b9cd92dc8"><div class="ttname"><a href="structnetq__t.html#aacd03017f40248c2f48c2b7b9cd92dc8">netq_t::retransmit_cnt</a></div><div class="ttdeci">unsigned char retransmit_cnt</div><div class="ttdef"><b>Definition:</b> <a href="netq_8h_source.html#l00047">netq.h:47</a></div></div>
<div class="ttc" id="dtls_8c_html_a187f5e145bb869a732fbed426929a4e9"><div class="ttname"><a href="dtls_8c.html#a187f5e145bb869a732fbed426929a4e9">dtls_connect</a></div><div class="ttdeci">int dtls_connect(dtls_context_t *ctx, const session_t *dst)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03862">dtls.c:3862</a></div></div>
<div class="ttc" id="crypto_8c_html_aa17bcdc666796e52788f82ee003bb172"><div class="ttname"><a href="crypto_8c.html#aa17bcdc666796e52788f82ee003bb172">dtls_handshake_free</a></div><div class="ttdeci">void dtls_handshake_free(dtls_handshake_parameters_t *handshake)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00146">crypto.c:146</a></div></div>
<div class="ttc" id="dtls_8c_html_afcc64c0abfd9b157b71a47e5a5a78b26"><div class="ttname"><a href="dtls_8c.html#afcc64c0abfd9b157b71a47e5a5a78b26">check_server_hello</a></div><div class="ttdeci">static int check_server_hello(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02460">dtls.c:2460</a></div></div>
<div class="ttc" id="session_8c_html_a96f4d60f388d56d37b3e69261bea2417"><div class="ttname"><a href="session_8c.html#a96f4d60f388d56d37b3e69261bea2417">dtls_session_equals</a></div><div class="ttdeci">int dtls_session_equals(const session_t *a, const session_t *b)</div><div class="ttdef"><b>Definition:</b> <a href="session_8c_source.html#l00080">session.c:80</a></div></div>
<div class="ttc" id="dtls_8c_html_ae272fea7269714fe7a67d6da64961731"><div class="ttname"><a href="dtls_8c.html#ae272fea7269714fe7a67d6da64961731">dtls_handle_message</a></div><div class="ttdeci">int dtls_handle_message(dtls_context_t *ctx, session_t *session, uint8 *msg, int msglen)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03591">dtls.c:3591</a></div></div>
<div class="ttc" id="dtls_8h_html_ad5882a5ff4073ffefa266bb2c4a1ee3c"><div class="ttname"><a href="dtls_8h.html#ad5882a5ff4073ffefa266bb2c4a1ee3c">DTLS_HT_SERVER_HELLO</a></div><div class="ttdeci">#define DTLS_HT_SERVER_HELLO</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00344">dtls.h:344</a></div></div>
<div class="ttc" id="structdtls__context__t_html_adb7dc6a53a7e00f2c4bbf726973e002f"><div class="ttname"><a href="structdtls__context__t.html#adb7dc6a53a7e00f2c4bbf726973e002f">dtls_context_t::cookie_secret</a></div><div class="ttdeci">unsigned char cookie_secret[DTLS_COOKIE_SECRET_LENGTH]</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00224">dtls.h:224</a></div></div>
<div class="ttc" id="dtls_8c_html_a82181208ec1e9f42896f0606e0036c1d"><div class="ttname"><a href="dtls_8c.html#a82181208ec1e9f42896f0606e0036c1d">clear_hs_hash</a></div><div class="ttdeci">static void clear_hs_hash(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01087">dtls.c:1087</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__t_html_a56e7392a649731166fc82a523b0eb027"><div class="ttname"><a href="structdtls__handshake__parameters__t.html#a56e7392a649731166fc82a523b0eb027">dtls_handshake_parameters_t::hs_state</a></div><div class="ttdeci">dtls_hs_state_t hs_state</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00125">crypto.h:125</a></div></div>
<div class="ttc" id="tinydtls_8h_html"><div class="ttname"><a href="tinydtls_8h.html">tinydtls.h</a></div><div class="ttdoc">public tinydtls API </div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35aa013ec95c846eaebd37acecc1a2f8a05"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35aa013ec95c846eaebd37acecc1a2f8a05">DTLS_STATE_WAIT_CLIENTKEYEXCHANGE</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00042">state.h:42</a></div></div>
<div class="ttc" id="dtls_8c_html_ab7a17e13b17da97cbef046b20cd7280f"><div class="ttname"><a href="dtls_8c.html#ab7a17e13b17da97cbef046b20cd7280f">R_KEY_OFFSET</a></div><div class="ttdeci">#define R_KEY_OFFSET</div></div>
<div class="ttc" id="dtls_8h_html_a76965db5ec449b3c8a9a54c24a4d45dc"><div class="ttname"><a href="dtls_8h.html#a76965db5ec449b3c8a9a54c24a4d45dc">DTLS_CT_HANDSHAKE</a></div><div class="ttdeci">#define DTLS_CT_HANDSHAKE</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00327">dtls.h:327</a></div></div>
<div class="ttc" id="dtls_8c_html_af8409ba213cb87dbf9ed16ef87995c54"><div class="ttname"><a href="dtls_8c.html#af8409ba213cb87dbf9ed16ef87995c54">dtls_check_ecdsa_signature_elem</a></div><div class="ttdeci">static int dtls_check_ecdsa_signature_elem(uint8 *data, size_t data_length, unsigned char **result_r, unsigned char **result_s)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01611">dtls.c:1611</a></div></div>
<div class="ttc" id="alert_8h_html_a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d"><div class="ttname"><a href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaea5ed33e912421eb48afb73ce0a6014d">DTLS_ALERT_HANDSHAKE_FAILURE</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00045">alert.h:45</a></div></div>
<div class="ttc" id="dtls_8c_html_a63f2c7e75b86bb2839b8fedf3fa9c93d"><div class="ttname"><a href="dtls_8c.html#a63f2c7e75b86bb2839b8fedf3fa9c93d">dtls_update_parameters</a></div><div class="ttdeci">static int dtls_update_parameters(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00900">dtls.c:900</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35a84b76c7a571c4b1d659e26d4e540c151"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35a84b76c7a571c4b1d659e26d4e540c151">DTLS_STATE_WAIT_CLIENTHELLO</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00041">state.h:41</a></div></div>
<div class="ttc" id="crypto_8h_html_a7119d3239c34d7e7f219200792339541"><div class="ttname"><a href="crypto_8h.html#a7119d3239c34d7e7f219200792339541">dtls_kb_remote_iv</a></div><div class="ttdeci">#define dtls_kb_remote_iv(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00172">crypto.h:172</a></div></div>
<div class="ttc" id="dtls_8c_html_aca393c29148080d4dfa343c8ec283928"><div class="ttname"><a href="dtls_8c.html#aca393c29148080d4dfa343c8ec283928">check_server_hellodone</a></div><div class="ttdeci">static int check_server_hellodone(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02804">dtls.c:2804</a></div></div>
<div class="ttc" id="crypto_8h_html_ae23208578ac21350cb5915d11da0a2e3"><div class="ttname"><a href="crypto_8h.html#ae23208578ac21350cb5915d11da0a2e3">dtls_kb_local_iv</a></div><div class="ttdeci">#define dtls_kb_local_iv(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00176">crypto.h:176</a></div></div>
<div class="ttc" id="group__HMAC_html_ga1ef9c88a0a2053b442413a9cea3deb73"><div class="ttname"><a href="group__HMAC.html#ga1ef9c88a0a2053b442413a9cea3deb73">dtls_hmac_update</a></div><div class="ttdeci">void dtls_hmac_update(dtls_hmac_context_t *ctx, const unsigned char *input, size_t ilen)</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8c_source.html#l00076">hmac.c:76</a></div></div>
<div class="ttc" id="crypto_8c_html_a5f9937088ea2e1d19e7d472fecae9aaa"><div class="ttname"><a href="crypto_8c.html#a5f9937088ea2e1d19e7d472fecae9aaa">dtls_ecdh_pre_master_secret</a></div><div class="ttdeci">int dtls_ecdh_pre_master_secret(unsigned char *priv_key, unsigned char *pub_key_x, unsigned char *pub_key_y, size_t key_size, unsigned char *result, size_t result_len)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00398">crypto.c:398</a></div></div>
<div class="ttc" id="t__list_8h_html_adcb86fe4485a0f8ea79541117641f730"><div class="ttname"><a href="t__list_8h.html#adcb86fe4485a0f8ea79541117641f730">LIST_STRUCT_INIT</a></div><div class="ttdeci">#define LIST_STRUCT_INIT(struct_ptr, name)</div><div class="ttdef"><b>Definition:</b> <a href="t__list_8h_source.html#l00090">t_list.h:90</a></div></div>
<div class="ttc" id="alert_8h_html_a9b9a52e7d4bb621be12878c7dfc8f5df"><div class="ttname"><a href="alert_8h.html#a9b9a52e7d4bb621be12878c7dfc8f5df">dtls_alert_fatal_create</a></div><div class="ttdeci">static int dtls_alert_fatal_create(dtls_alert_t desc)</div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00077">alert.h:77</a></div></div>
<div class="ttc" id="dtls_8c_html_afdd0d094bfd136f65455e23fda087cd6"><div class="ttname"><a href="dtls_8c.html#afdd0d094bfd136f65455e23fda087cd6">dtls_send</a></div><div class="ttdeci">static int dtls_send(dtls_context_t *ctx, dtls_peer_t *peer, unsigned char type, uint8 *buf, size_t buflen)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00200">dtls.c:200</a></div></div>
<div class="ttc" id="structdtls__ecdsa__key__t_html_a91769609f44590f193d726187ab366de"><div class="ttname"><a href="structdtls__ecdsa__key__t.html#a91769609f44590f193d726187ab366de">dtls_ecdsa_key_t::priv_key</a></div><div class="ttdeci">const unsigned char * priv_key</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00065">dtls.h:65</a></div></div>
<div class="ttc" id="dtls__config_8h_html"><div class="ttname"><a href="dtls__config_8h.html">dtls_config.h</a></div></div>
<div class="ttc" id="crypto_8c_html_aa53dfed4868e257d2485024b5c170bae"><div class="ttname"><a href="crypto_8c.html#aa53dfed4868e257d2485024b5c170bae">dtls_psk_pre_master_secret</a></div><div class="ttdeci">int dtls_psk_pre_master_secret(unsigned char *key, size_t keylen, unsigned char *result, size_t result_len)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00318">crypto.c:318</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35a8c1ffc1652e7c5ba25239fe1f3a430ba"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35a8c1ffc1652e7c5ba25239fe1f3a430ba">DTLS_STATE_WAIT_FINISHED</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00044">state.h:44</a></div></div>
<div class="ttc" id="structdtls__context__t_html"><div class="ttname"><a href="structdtls__context__t.html">dtls_context_t</a></div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00223">dtls.h:223</a></div></div>
<div class="ttc" id="crypto_8h_html_ac8fdf3770dcd956ca10d1044a57a7a3a"><div class="ttname"><a href="crypto_8h.html#ac8fdf3770dcd956ca10d1044a57a7a3a">dtls_kb_server_mac_secret</a></div><div class="ttdeci">#define dtls_kb_server_mac_secret(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00144">crypto.h:144</a></div></div>
<div class="ttc" id="t__list_8h_html_a5ba6a8506e0226ab945349e25ef65d56"><div class="ttname"><a href="t__list_8h.html#a5ba6a8506e0226ab945349e25ef65d56">list_pop</a></div><div class="ttdeci">static void * list_pop(list_t list)</div><div class="ttdef"><b>Definition:</b> <a href="t__list_8h_source.html#l00117">t_list.h:117</a></div></div>
<div class="ttc" id="hmac_8h_html_abb19650a510c73117da0e9b88d68f159"><div class="ttname"><a href="hmac_8h.html#abb19650a510c73117da0e9b88d68f159">dtls_hash_ctx</a></div><div class="ttdeci">SHA256_CTX dtls_hash_ctx</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00038">hmac.h:38</a></div></div>
<div class="ttc" id="crypto_8c_html_ad58098f0e821f81b4f1a6672ead17ac5"><div class="ttname"><a href="crypto_8c.html#ad58098f0e821f81b4f1a6672ead17ac5">dtls_encrypt</a></div><div class="ttdeci">int dtls_encrypt(const unsigned char *src, size_t length, unsigned char *buf, unsigned char *nounce, unsigned char *key, size_t keylen, const unsigned char *aad, size_t la)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00524">crypto.c:524</a></div></div>
<div class="ttc" id="dtls_8c_html_a112e0d83a0e576b5d22df60241900a67"><div class="ttname"><a href="dtls_8c.html#a112e0d83a0e576b5d22df60241900a67">dtls_send_finished</a></div><div class="ttdeci">static int dtls_send_finished(dtls_context_t *ctx, dtls_peer_t *peer, const unsigned char *label, size_t labellen)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02277">dtls.c:2277</a></div></div>
<div class="ttc" id="debug_8h_html"><div class="ttname"><a href="debug_8h.html">debug.h</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__t_html_a5cc61a98763800b5b4e7617307649933"><div class="ttname"><a href="structdtls__handshake__parameters__t.html#a5cc61a98763800b5b4e7617307649933">dtls_handshake_parameters_t::cipher</a></div><div class="ttdeci">dtls_cipher_t cipher</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00128">crypto.h:128</a></div></div>
<div class="ttc" id="global_8h_html_af086ed2d0aea096be56bf7e46f8f72a6"><div class="ttname"><a href="global_8h.html#af086ed2d0aea096be56bf7e46f8f72a6">TLS_EXT_EC_POINT_FORMATS_UNCOMPRESSED</a></div><div class="ttdeci">#define TLS_EXT_EC_POINT_FORMATS_UNCOMPRESSED</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00096">global.h:96</a></div></div>
<div class="ttc" id="global_8h_html_ad465b86d1841ddd6c2209ff304895a95"><div class="ttname"><a href="global_8h.html#ad465b86d1841ddd6c2209ff304895a95">TLS_EXT_SERVER_CERTIFICATE_TYPE</a></div><div class="ttdeci">#define TLS_EXT_SERVER_CERTIFICATE_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00089">global.h:89</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35">dtls_state_t</a></div><div class="ttdeci">dtls_state_t</div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00040">state.h:40</a></div></div>
<div class="ttc" id="dtls_8h_html_a09e4f571633bdb724236ac68459715b6"><div class="ttname"><a href="dtls_8h.html#a09e4f571633bdb724236ac68459715b6">DTLS_COOKIE_LENGTH</a></div><div class="ttdeci">#define DTLS_COOKIE_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00323">dtls.h:323</a></div></div>
<div class="ttc" id="dtls_8h_html_a2e3ff1e96b8b7db8a3648beba35bfd0c"><div class="ttname"><a href="dtls_8h.html#a2e3ff1e96b8b7db8a3648beba35bfd0c">DTLS_CT_APPLICATION_DATA</a></div><div class="ttdeci">#define DTLS_CT_APPLICATION_DATA</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00328">dtls.h:328</a></div></div>
<div class="ttc" id="dtls_8c_html_a21644ea2de742395df1e3b3281ba4f63"><div class="ttname"><a href="dtls_8c.html#a21644ea2de742395df1e3b3281ba4f63">DTLS_FIN_LENGTH</a></div><div class="ttdeci">#define DTLS_FIN_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00087">dtls.c:87</a></div></div>
<div class="ttc" id="dtls_8c_html_a7d7af4d19c7abef4583c1667ec449a5d"><div class="ttname"><a href="dtls_8c.html#a7d7af4d19c7abef4583c1667ec449a5d">dtls_add_ecdsa_signature_elem</a></div><div class="ttdeci">static uint8 * dtls_add_ecdsa_signature_elem(uint8 *p, uint32_t *point_r, uint32_t *point_s)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01867">dtls.c:1867</a></div></div>
<div class="ttc" id="structsession__t_html"><div class="ttname"><a href="structsession__t.html">session_t</a></div><div class="ttdef"><b>Definition:</b> <a href="session_8h_source.html#l00049">session.h:49</a></div></div>
<div class="ttc" id="dtls_8c_html_a61ddc44bfdb8a92b72911a402aa0164e"><div class="ttname"><a href="dtls_8c.html#a61ddc44bfdb8a92b72911a402aa0164e">check_certificate_request</a></div><div class="ttdeci">static int check_certificate_request(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02726">dtls.c:2726</a></div></div>
<div class="ttc" id="uthash_8h_html_a4d524042f1fcb976d8bccae9e4cc63d6"><div class="ttname"><a href="uthash_8h.html#a4d524042f1fcb976d8bccae9e4cc63d6">HASH_ITER</a></div><div class="ttdeci">#define HASH_ITER(hh, head, el, tmp)</div><div class="ttdef"><b>Definition:</b> <a href="uthash_8h_source.html#l00895">uthash.h:895</a></div></div>
<div class="ttc" id="group__netq_html_gab4c90c003808a784ae1ee9322e75627d"><div class="ttname"><a href="group__netq.html#gab4c90c003808a784ae1ee9322e75627d">netq_next</a></div><div class="ttdeci">netq_t * netq_next(netq_t *p)</div><div class="ttdef"><b>Definition:</b> <a href="netq_8c_source.html#l00088">netq.c:88</a></div></div>
<div class="ttc" id="dtls_8h_html_a16b49d03e041d43b60e1b7bacf35daad"><div class="ttname"><a href="dtls_8h.html#a16b49d03e041d43b60e1b7bacf35daad">DTLS_HT_FINISHED</a></div><div class="ttdeci">#define DTLS_HT_FINISHED</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00352">dtls.h:352</a></div></div>
<div class="ttc" id="alert_8h_html_ab6264d1b950719f1c2e00b122cad871fabd07bcf63c24aa5f1b9706a4197ceaf4"><div class="ttname"><a href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871fabd07bcf63c24aa5f1b9706a4197ceaf4">DTLS_ALERT_LEVEL_FATAL</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00036">alert.h:36</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__t_html_a5c4e7bb5d4d890200a176cfe13c6fb9a"><div class="ttname"><a href="structdtls__handshake__parameters__t.html#a5c4e7bb5d4d890200a176cfe13c6fb9a">dtls_handshake_parameters_t::random</a></div><div class="ttdeci">struct dtls_handshake_parameters_t::@0::random_t random</div></div>
<div class="ttc" id="dtls_8h_html_af0c44db3bf3a6a52e9ed271218daeaa6"><div class="ttname"><a href="dtls_8h.html#af0c44db3bf3a6a52e9ed271218daeaa6">DTLS_VERSION</a></div><div class="ttdeci">#define DTLS_VERSION</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00056">dtls.h:56</a></div></div>
<div class="ttc" id="dtls_8c_html_abba2a2562813493d98b5671a4c5c082b"><div class="ttname"><a href="dtls_8c.html#abba2a2562813493d98b5671a4c5c082b">prf_label_client</a></div><div class="ttdeci">static const unsigned char prf_label_client[]</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00119">dtls.c:119</a></div></div>
<div class="ttc" id="dtls_8c_html_a70333bea2db35153177347b5c7700cab"><div class="ttname"><a href="dtls_8c.html#a70333bea2db35153177347b5c7700cab">dtls_get_peer</a></div><div class="ttdeci">dtls_peer_t * dtls_get_peer(const dtls_context_t *ctx, const session_t *session)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00212">dtls.c:212</a></div></div>
<div class="ttc" id="session_8h_html"><div class="ttname"><a href="session_8h.html">session.h</a></div></div>
<div class="ttc" id="debug_8c_html_ac6afabdc09a49a433ee19d8a9486056d"><div class="ttname"><a href="debug_8c.html#ac6afabdc09a49a433ee19d8a9486056d">min</a></div><div class="ttdeci">#define min(a, b)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8c_source.html#l00114">debug.c:114</a></div></div>
<div class="ttc" id="numeric_8h_html_abe324cc4e62d03bdecf457382ba213c8"><div class="ttname"><a href="numeric_8h.html#abe324cc4e62d03bdecf457382ba213c8">dtls_int_to_uint48</a></div><div class="ttdeci">static int dtls_int_to_uint48(unsigned char *field, uint64_t value)</div><div class="ttdef"><b>Definition:</b> <a href="numeric_8h_source.html#l00070">numeric.h:70</a></div></div>
<div class="ttc" id="dtls_8c_html_a8a4dc9af457241380a01c8e38fdc4e2d"><div class="ttname"><a href="dtls_8c.html#a8a4dc9af457241380a01c8e38fdc4e2d">DTLS_SKEXECPSK_LENGTH_MAX</a></div><div class="ttdeci">#define DTLS_SKEXECPSK_LENGTH_MAX</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00083">dtls.c:83</a></div></div>
<div class="ttc" id="crypto_8h_html_a147bfdc558c2ec69ffdf388ae19ae01c"><div class="ttname"><a href="crypto_8h.html#a147bfdc558c2ec69ffdf388ae19ae01c">dtls_kb_size</a></div><div class="ttdeci">#define dtls_kb_size(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00182">crypto.h:182</a></div></div>
<div class="ttc" id="dtls_8h_html_aab327e17614cf2902c5fc6169466613f"><div class="ttname"><a href="dtls_8h.html#aab327e17614cf2902c5fc6169466613f">DTLS_HT_SERVER_KEY_EXCHANGE</a></div><div class="ttdeci">#define DTLS_HT_SERVER_KEY_EXCHANGE</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00347">dtls.h:347</a></div></div>
<div class="ttc" id="dtls_8c_html_a00f6591bce49f6122dab9827c8774ba3"><div class="ttname"><a href="dtls_8c.html#a00f6591bce49f6122dab9827c8774ba3">dtls_send_server_key_exchange_psk</a></div><div class="ttdeci">static int dtls_send_server_key_exchange_psk(dtls_context_t *ctx, dtls_peer_t *peer, const unsigned char *psk_hint, size_t len)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01989">dtls.c:1989</a></div></div>
<div class="ttc" id="group__clock_html_ga8b340ad858b708dbc7bf40f784935c90"><div class="ttname"><a href="group__clock.html#ga8b340ad858b708dbc7bf40f784935c90">dtls_clock_init</a></div><div class="ttdeci">void dtls_clock_init(void)</div><div class="ttdef"><b>Definition:</b> <a href="dtls__time_8c_source.html#l00054">dtls_time.c:54</a></div></div>
<div class="ttc" id="crypto_8c_html_a49f03039780664684d110d83a228b163"><div class="ttname"><a href="crypto_8c.html#a49f03039780664684d110d83a228b163">dtls_ecdsa_create_sig_hash</a></div><div class="ttdeci">void dtls_ecdsa_create_sig_hash(const unsigned char *priv_key, size_t key_size, const unsigned char *sign_hash, size_t sign_hash_size, uint32_t point_r[9], uint32_t point_s[9])</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00446">crypto.c:446</a></div></div>
<div class="ttc" id="group__clock_html_gaded617551180951f4841969e396a8012"><div class="ttname"><a href="group__clock.html#gaded617551180951f4841969e396a8012">dtls_tick_t</a></div><div class="ttdeci">clock_time_t dtls_tick_t</div><div class="ttdef"><b>Definition:</b> <a href="dtls__time_8h_source.html#l00058">dtls_time.h:58</a></div></div>
<div class="ttc" id="structsession__t_html_aed21682e9f971221d9f35f1266dea125"><div class="ttname"><a href="structsession__t.html#aed21682e9f971221d9f35f1266dea125">session_t::size</a></div><div class="ttdeci">socklen_t size</div><div class="ttdef"><b>Definition:</b> <a href="session_8h_source.html#l00050">session.h:50</a></div></div>
<div class="ttc" id="structnetq__t_html_a5b4d387623df43fe25a3b11e9d4fb02c"><div class="ttname"><a href="structnetq__t.html#a5b4d387623df43fe25a3b11e9d4fb02c">netq_t::data</a></div><div class="ttdeci">unsigned char data[]</div><div class="ttdef"><b>Definition:</b> <a href="netq_8h_source.html#l00051">netq.h:51</a></div></div>
<div class="ttc" id="dtls_8c_html_a04a3580764ffd4f253ce6be858806c95"><div class="ttname"><a href="dtls_8c.html#a04a3580764ffd4f253ce6be858806c95">verify_ext_ec_point_formats</a></div><div class="ttdeci">static int verify_ext_ec_point_formats(uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00749">dtls.c:749</a></div></div>
<div class="ttc" id="structnetq__t_html"><div class="ttname"><a href="structnetq__t.html">netq_t</a></div><div class="ttdef"><b>Definition:</b> <a href="netq_8h_source.html#l00038">netq.h:38</a></div></div>
<div class="ttc" id="alert_8h_html_ab6264d1b950719f1c2e00b122cad871fa0f670b55dcb4ab291b869827d3c62ee7"><div class="ttname"><a href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871fa0f670b55dcb4ab291b869827d3c62ee7">DTLS_ALERT_LEVEL_WARNING</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00035">alert.h:35</a></div></div>
<div class="ttc" id="dtls_8c_html_abb41f4bb9b8e4218ef5115ce70ebdc21"><div class="ttname"><a href="dtls_8c.html#abb41f4bb9b8e4218ef5115ce70ebdc21">is_ecdsa_supported</a></div><div class="ttdeci">static int is_ecdsa_supported(dtls_context_t *ctx, int is_client)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00491">dtls.c:491</a></div></div>
<div class="ttc" id="dtls_8c_html_aad633ed0a80e25b3884d119a8d8aeaff"><div class="ttname"><a href="dtls_8c.html#aad633ed0a80e25b3884d119a8d8aeaff">dtls_get_fragment_length</a></div><div class="ttdeci">#define dtls_get_fragment_length(H)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00062">dtls.c:62</a></div></div>
<div class="ttc" id="numeric_8h_html_aff276cdd846cd194a21e9c61549292f6"><div class="ttname"><a href="numeric_8h.html#aff276cdd846cd194a21e9c61549292f6">dtls_int_to_uint24</a></div><div class="ttdeci">static int dtls_int_to_uint24(unsigned char *field, uint32_t value)</div><div class="ttdef"><b>Definition:</b> <a href="numeric_8h_source.html#l00053">numeric.h:53</a></div></div>
<div class="ttc" id="dtls_8c_html_a4f06884f659f6a5120be7e0b86d29880"><div class="ttname"><a href="dtls_8c.html#a4f06884f659f6a5120be7e0b86d29880">dtls_send_handshake_msg_hash</a></div><div class="ttdeci">static int dtls_send_handshake_msg_hash(dtls_context_t *ctx, dtls_peer_t *peer, session_t *session, uint8 header_type, uint8 *data, size_t data_length, int add_hash)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01323">dtls.c:1323</a></div></div>
<div class="ttc" id="dtls_8h_html_a81936df7abb2c16aa897e3018aa24399"><div class="ttname"><a href="dtls_8h.html#a81936df7abb2c16aa897e3018aa24399">dtls_record_header_t</a></div><div class="ttdeci">dtls_record_header_t</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00338">dtls.h:338</a></div></div>
<div class="ttc" id="dtls_8c_html_a445994c602b105608f277c6fc066301d"><div class="ttname"><a href="dtls_8c.html#a445994c602b105608f277c6fc066301d">handle_alert</a></div><div class="ttdeci">static int handle_alert(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *record_header, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03496">dtls.c:3496</a></div></div>
<div class="ttc" id="dtls_8h_html_a36eda3add5e2d12a3b5e2b6fe7038e01adb8cac45614b2bc4e66970b64043cfc2"><div class="ttname"><a href="dtls_8h.html#a36eda3add5e2d12a3b5e2b6fe7038e01adb8cac45614b2bc4e66970b64043cfc2">DTLS_PSK_IDENTITY</a></div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00060">dtls.h:60</a></div></div>
<div class="ttc" id="dtls_8c_html_a674da4ca826bf1206ec8053f4c9eb336"><div class="ttname"><a href="dtls_8c.html#a674da4ca826bf1206ec8053f4c9eb336">DTLS_CKXPSK_LENGTH_MIN</a></div><div class="ttdeci">#define DTLS_CKXPSK_LENGTH_MIN</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00084">dtls.c:84</a></div></div>
<div class="ttc" id="group__netq_html_gafcf245cd934e9b8f0909a7ca8940e9cb"><div class="ttname"><a href="group__netq.html#gafcf245cd934e9b8f0909a7ca8940e9cb">netq_node_new</a></div><div class="ttdeci">netq_t * netq_node_new(size_t size)</div><div class="ttdef"><b>Definition:</b> <a href="netq_8c_source.html#l00111">netq.c:111</a></div></div>
<div class="ttc" id="alert_8h_html_ab6264d1b950719f1c2e00b122cad871f"><div class="ttname"><a href="alert_8h.html#ab6264d1b950719f1c2e00b122cad871f">dtls_alert_level_t</a></div><div class="ttdeci">dtls_alert_level_t</div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00034">alert.h:34</a></div></div>
<div class="ttc" id="debug_8h_html_a1f464e950a4fa11e8821b5c725921a15"><div class="ttname"><a href="debug_8h.html#a1f464e950a4fa11e8821b5c725921a15">PRINTF</a></div><div class="ttdeci">#define PRINTF(...)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00057">debug.h:57</a></div></div>
<div class="ttc" id="dtls_8h_html_a36eda3add5e2d12a3b5e2b6fe7038e01a1d64c04f18b370cf742595dc91098db4"><div class="ttname"><a href="dtls_8h.html#a36eda3add5e2d12a3b5e2b6fe7038e01a1d64c04f18b370cf742595dc91098db4">DTLS_PSK_KEY</a></div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00060">dtls.h:60</a></div></div>
<div class="ttc" id="dtls_8c_html_ab43d3a34ddaf0f5bfaa2b0b3e76e25d1"><div class="ttname"><a href="dtls_8c.html#ab43d3a34ddaf0f5bfaa2b0b3e76e25d1">dtls_set_handshake_header</a></div><div class="ttdeci">static uint8 * dtls_set_handshake_header(uint8 type, dtls_peer_t *peer, int length, int frag_offset, int frag_length, uint8 *buf)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00424">dtls.c:424</a></div></div>
<div class="ttc" id="peer_8h_html_ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255"><div class="ttname"><a href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8a7c2a694fc87273c445ad661575b28255">DTLS_SERVER</a></div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00047">peer.h:47</a></div></div>
<div class="ttc" id="global_8h_html_a8095691f33c0ce6b22d205640ccc9417"><div class="ttname"><a href="global_8h.html#a8095691f33c0ce6b22d205640ccc9417">TLS_EXT_ELLIPTIC_CURVES_SECP256R1</a></div><div class="ttdeci">#define TLS_EXT_ELLIPTIC_CURVES_SECP256R1</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00094">global.h:94</a></div></div>
<div class="ttc" id="structdtls__peer__t_html_a4e23cc3b273813744524c3db1fda9c83"><div class="ttname"><a href="structdtls__peer__t.html#a4e23cc3b273813744524c3db1fda9c83">dtls_peer_t::state</a></div><div class="ttdeci">dtls_state_t state</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00062">peer.h:62</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35ab3436ceaa0f47131771c288b8b5f1840"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35ab3436ceaa0f47131771c288b8b5f1840">DTLS_STATE_WAIT_CHANGECIPHERSPEC</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00043">state.h:43</a></div></div>
<div class="ttc" id="dtls_8c_html_a8098a728e5fff33ceeb7f57ebd48a212"><div class="ttname"><a href="dtls_8c.html#a8098a728e5fff33ceeb7f57ebd48a212">is_tls_ecdhe_ecdsa_with_aes_128_ccm_8</a></div><div class="ttdeci">static int is_tls_ecdhe_ecdsa_with_aes_128_ccm_8(dtls_cipher_t cipher)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00461">dtls.c:461</a></div></div>
<div class="ttc" id="structdtls__context__t_html_a3f26099dbb3588ae9a86d26f69ec08f8"><div class="ttname"><a href="structdtls__context__t.html#a3f26099dbb3588ae9a86d26f69ec08f8">dtls_context_t::cookie_secret_age</a></div><div class="ttdeci">clock_time_t cookie_secret_age</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00225">dtls.h:225</a></div></div>
<div class="ttc" id="alert_8h_html"><div class="ttname"><a href="alert_8h.html">alert.h</a></div><div class="ttdoc">DTLS alert protocol. </div></div>
<div class="ttc" id="alert_8h_html_aec2aa0683b1a39b4b1abba357b06f844"><div class="ttname"><a href="alert_8h.html#aec2aa0683b1a39b4b1abba357b06f844">DTLS_EVENT_CONNECT</a></div><div class="ttdeci">#define DTLS_EVENT_CONNECT</div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00064">alert.h:64</a></div></div>
<div class="ttc" id="dtls_8c_html_a3742f5067d1b0693d6a41e70d4ecd5b5"><div class="ttname"><a href="dtls_8c.html#a3742f5067d1b0693d6a41e70d4ecd5b5">dtls_stop_retransmission</a></div><div class="ttdeci">static void dtls_stop_retransmission(dtls_context_t *context, dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03941">dtls.c:3941</a></div></div>
<div class="ttc" id="debug_8h_html_afde5692e7a590b0dd016d5753284c175"><div class="ttname"><a href="debug_8h.html#afde5692e7a590b0dd016d5753284c175">dtls_info</a></div><div class="ttdeci">#define dtls_info(...)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00138">debug.h:138</a></div></div>
<div class="ttc" id="t__list_8h_html_aee4e6fc5d9a6133555e7373c654b2120"><div class="ttname"><a href="t__list_8h.html#aee4e6fc5d9a6133555e7373c654b2120">list_add</a></div><div class="ttdeci">static void list_add(list_t list, void *item)</div><div class="ttdef"><b>Definition:</b> <a href="t__list_8h_source.html#l00106">t_list.h:106</a></div></div>
<div class="ttc" id="peer_8h_html_af5de0315efd7e8c6b1aecf60078b2dd7"><div class="ttname"><a href="peer_8h.html#af5de0315efd7e8c6b1aecf60078b2dd7">dtls_security_params_epoch</a></div><div class="ttdeci">static dtls_security_parameters_t * dtls_security_params_epoch(dtls_peer_t *peer, uint16_t epoch)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00068">peer.h:68</a></div></div>
<div class="ttc" id="crypto_8c_html_a86e6ce9d4b4afcef355836955697f52c"><div class="ttname"><a href="crypto_8c.html#a86e6ce9d4b4afcef355836955697f52c">crypto_init</a></div><div class="ttdeci">void crypto_init()</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00076">crypto.c:76</a></div></div>
<div class="ttc" id="dtls_8c_html_a2cc930733d35ea870c7a0a131bee0d7a"><div class="ttname"><a href="dtls_8c.html#a2cc930733d35ea870c7a0a131bee0d7a">DTLS_HANDSHAKE_HEADER</a></div><div class="ttdeci">#define DTLS_HANDSHAKE_HEADER(M)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00096">dtls.c:96</a></div></div>
<div class="ttc" id="dtls_8c_html_a4aac4fa55afe2d19342136acaaaf9641"><div class="ttname"><a href="dtls_8c.html#a4aac4fa55afe2d19342136acaaaf9641">dtls_send_alert</a></div><div class="ttdeci">static int dtls_send_alert(dtls_context_t *ctx, dtls_peer_t *peer, dtls_alert_level_t level, dtls_alert_t description)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01485">dtls.c:1485</a></div></div>
<div class="ttc" id="global_8h_html_ac97469cc46ceeb148ee92f47a26ebcf6"><div class="ttname"><a href="global_8h.html#ac97469cc46ceeb148ee92f47a26ebcf6">TLS_EC_CURVE_TYPE_NAMED_CURVE</a></div><div class="ttdeci">#define TLS_EC_CURVE_TYPE_NAMED_CURVE</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00098">global.h:98</a></div></div>
<div class="ttc" id="dtls_8c_html_adfe6fc0d0d66e9ffaef25c2c126b1c34"><div class="ttname"><a href="dtls_8c.html#adfe6fc0d0d66e9ffaef25c2c126b1c34">dtls_send_certificate_verify_ecdh</a></div><div class="ttdeci">static int dtls_send_certificate_verify_ecdh(dtls_context_t *ctx, dtls_peer_t *peer, const dtls_ecdsa_key_t *key)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02241">dtls.c:2241</a></div></div>
<div class="ttc" id="dtls_8c_html_a017195b30506fbdf32fff55af9276a02"><div class="ttname"><a href="dtls_8c.html#a017195b30506fbdf32fff55af9276a02">check_client_certificate_verify</a></div><div class="ttdeci">static int check_client_certificate_verify(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01691">dtls.c:1691</a></div></div>
<div class="ttc" id="structdtls__context__t_html_a417fa8ac04478292f0539d2da0fec088"><div class="ttname"><a href="structdtls__context__t.html#a417fa8ac04478292f0539d2da0fec088">dtls_context_t::peers</a></div><div class="ttdeci">dtls_peer_t * peers</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00228">dtls.h:228</a></div></div>
<div class="ttc" id="crypto_8h_html_ab5659b0737d72a2fa1b1335952f9c305"><div class="ttname"><a href="crypto_8h.html#ab5659b0737d72a2fa1b1335952f9c305">dtls_kb_client_write_key</a></div><div class="ttdeci">#define dtls_kb_client_write_key(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00155">crypto.h:155</a></div></div>
<div class="ttc" id="global_8h_html_ada7e71454d685b693df45b2c1ea0c59ba39a3062f136db88f648ce514a591fac8"><div class="ttname"><a href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba39a3062f136db88f648ce514a591fac8">TLS_PSK_WITH_AES_128_CCM_8</a></div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00076">global.h:76</a></div></div>
<div class="ttc" id="crypto_8c_html_a982fc9e78cd10d9323756b15b72c7970"><div class="ttname"><a href="crypto_8c.html#a982fc9e78cd10d9323756b15b72c7970">dtls_ecdsa_generate_key</a></div><div class="ttdeci">void dtls_ecdsa_generate_key(unsigned char *priv_key, unsigned char *pub_key_x, unsigned char *pub_key_y, size_t key_size)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00425">crypto.c:425</a></div></div>
<div class="ttc" id="structdtls__peer__t_html_a44ebb2ba643269c7e6943f3a9040febe"><div class="ttname"><a href="structdtls__peer__t.html#a44ebb2ba643269c7e6943f3a9040febe">dtls_peer_t::session</a></div><div class="ttdeci">session_t session</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00059">peer.h:59</a></div></div>
<div class="ttc" id="t__list_8h_html_ae7f0bdad2409695760ffd8de55b6a99b"><div class="ttname"><a href="t__list_8h.html#ae7f0bdad2409695760ffd8de55b6a99b">list_item_next</a></div><div class="ttdeci">static void * list_item_next(void *item)</div><div class="ttdef"><b>Definition:</b> <a href="t__list_8h_source.html#l00137">t_list.h:137</a></div></div>
<div class="ttc" id="group__clock_html_ga6e6c13e871b82d881a01d1bc8df69d23"><div class="ttname"><a href="group__clock.html#ga6e6c13e871b82d881a01d1bc8df69d23">clock_time_t</a></div><div class="ttdeci">uint32_t clock_time_t</div><div class="ttdef"><b>Definition:</b> <a href="dtls__time_8h_source.html#l00055">dtls_time.h:55</a></div></div>
<div class="ttc" id="crypto_8c_html_a5ae24f3621f545752732e318840d7e2b"><div class="ttname"><a href="crypto_8c.html#a5ae24f3621f545752732e318840d7e2b">dtls_ec_key_from_uint32_asn1</a></div><div class="ttdeci">int dtls_ec_key_from_uint32_asn1(const uint32_t *key, size_t key_size, unsigned char *buf)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00362">crypto.c:362</a></div></div>
<div class="ttc" id="alert_8h_html_a41c9f2d4035bc6bf5a0f437842a9ecbda6bbae4f2f3747af4cdbe80c4a1061800"><div class="ttname"><a href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda6bbae4f2f3747af4cdbe80c4a1061800">DTLS_ALERT_CLOSE_NOTIFY</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00040">alert.h:40</a></div></div>
<div class="ttc" id="global_8h_html_a0749f1df578b26eccab986b0d8abaa56"><div class="ttname"><a href="global_8h.html#a0749f1df578b26eccab986b0d8abaa56">uint48</a></div><div class="ttdeci">unsigned char uint48[6]</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00051">global.h:51</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35a4aa3fcce37191fc2a915aa330efd381b"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35a4aa3fcce37191fc2a915aa330efd381b">DTLS_STATE_CLOSING</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00050">state.h:50</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__t_html_a483b158f8fc86e45e7c0fc603a66925f"><div class="ttname"><a href="structdtls__handshake__parameters__t.html#a483b158f8fc86e45e7c0fc603a66925f">dtls_handshake_parameters_t::keyx</a></div><div class="ttdeci">union dtls_handshake_parameters_t::@1 keyx</div></div>
<div class="ttc" id="crypto_8c_html_a035860da45ba2586a95c8ef7f539a3c9"><div class="ttname"><a href="crypto_8c.html#a035860da45ba2586a95c8ef7f539a3c9">dtls_ecdsa_verify_sig</a></div><div class="ttdeci">int dtls_ecdsa_verify_sig(const unsigned char *pub_key_x, const unsigned char *pub_key_y, size_t key_size, const unsigned char *client_random, size_t client_random_size, const unsigned char *server_random, size_t server_random_size, const unsigned char *keyx_params, size_t keyx_params_size, unsigned char *result_r, unsigned char *result_s)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00503">crypto.c:503</a></div></div>
<div class="ttc" id="global_8h_html_aa347771eab2eabd24c4b9311fa61c4c9"><div class="ttname"><a href="global_8h.html#aa347771eab2eabd24c4b9311fa61c4c9">TLS_EXT_SIG_HASH_ALGO_SHA256</a></div><div class="ttdeci">#define TLS_EXT_SIG_HASH_ALGO_SHA256</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00102">global.h:102</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__t_html_ab17efe8550600d945ced029e43ca86d6"><div class="ttname"><a href="structdtls__handshake__parameters__t.html#ab17efe8550600d945ced029e43ca86d6">dtls_handshake_parameters_t::do_client_auth</a></div><div class="ttdeci">unsigned int do_client_auth</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00129">crypto.h:129</a></div></div>
<div class="ttc" id="alert_8h_html_a41c9f2d4035bc6bf5a0f437842a9ecbda8939a5d1777bf0dbdd8fa44e335137ab"><div class="ttname"><a href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda8939a5d1777bf0dbdd8fa44e335137ab">DTLS_ALERT_NO_RENEGOTIATION</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00060">alert.h:60</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__t_html_ac27a2063a8136615971f8d591afdd01f"><div class="ttname"><a href="structdtls__handshake__parameters__t.html#ac27a2063a8136615971f8d591afdd01f">dtls_handshake_parameters_t::tmp</a></div><div class="ttdeci">union dtls_handshake_parameters_t::@0 tmp</div></div>
<div class="ttc" id="alert_8h_html_a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a"><div class="ttname"><a href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda7b9032725373912bd7fda54af8704d8a">DTLS_ALERT_UNEXPECTED_MESSAGE</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00041">alert.h:41</a></div></div>
<div class="ttc" id="crypto_8h_html_adcdadf1870e2acb2993b1a8726d26997"><div class="ttname"><a href="crypto_8h.html#adcdadf1870e2acb2993b1a8726d26997">dtls_kb_iv_size</a></div><div class="ttdeci">#define dtls_kb_iv_size(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00180">crypto.h:180</a></div></div>
<div class="ttc" id="dtls_8c_html_a37965d10b44a63ea6adbf28b9dc79b75"><div class="ttname"><a href="dtls_8c.html#a37965d10b44a63ea6adbf28b9dc79b75">known_cipher</a></div><div class="ttdeci">static int known_cipher(dtls_context_t *ctx, dtls_cipher_t code, int is_client)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00522">dtls.c:522</a></div></div>
<div class="ttc" id="group__HMAC_html_ga060019cf2dab9903d58118fe1abe7018"><div class="ttname"><a href="group__HMAC.html#ga060019cf2dab9903d58118fe1abe7018">DTLS_HMAC_DIGEST_SIZE</a></div><div class="ttdeci">#define DTLS_HMAC_DIGEST_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00074">hmac.h:74</a></div></div>
<div class="ttc" id="dtls_8c_html_a80275f06c14cbbc18095bc2f61022d15"><div class="ttname"><a href="dtls_8c.html#a80275f06c14cbbc18095bc2f61022d15">dtls_send_server_key_exchange_ecdh</a></div><div class="ttdeci">static int dtls_send_server_key_exchange_ecdh(dtls_context_t *ctx, dtls_peer_t *peer, const dtls_ecdsa_key_t *key)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01924">dtls.c:1924</a></div></div>
<div class="ttc" id="numeric_8h_html_a7293cc28604d896cfef802b53b0ad99f"><div class="ttname"><a href="numeric_8h.html#a7293cc28604d896cfef802b53b0ad99f">dtls_uint8_to_int</a></div><div class="ttdeci">static uint8_t dtls_uint8_to_int(const unsigned char *field)</div><div class="ttdef"><b>Definition:</b> <a href="numeric_8h_source.html#l00094">numeric.h:94</a></div></div>
<div class="ttc" id="dtls_8c_html_a604f68a801e55b884f7f7f1d2f1b9c9f"><div class="ttname"><a href="dtls_8c.html#a604f68a801e55b884f7f7f1d2f1b9c9f">dtls_verify_peer</a></div><div class="ttdeci">static int dtls_verify_peer(dtls_context_t *ctx, dtls_peer_t *peer, session_t *session, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01540">dtls.c:1540</a></div></div>
<div class="ttc" id="global_8h_html_af126227a026a7af436a4323db6d02ecc"><div class="ttname"><a href="global_8h.html#af126227a026a7af436a4323db6d02ecc">TLS_EXT_SIG_HASH_ALGO_ECDSA</a></div><div class="ttdeci">#define TLS_EXT_SIG_HASH_ALGO_ECDSA</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00103">global.h:103</a></div></div>
<div class="ttc" id="structdtls__context__t_html_a460737bda0d200538c00ef7877b339cd"><div class="ttname"><a href="structdtls__context__t.html#a460737bda0d200538c00ef7877b339cd">dtls_context_t::h</a></div><div class="ttdeci">dtls_handler_t * h</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00239">dtls.h:239</a></div></div>
<div class="ttc" id="alert_8h_html_a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58"><div class="ttname"><a href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda22948f7c825b68cc18c79bd3634c8f58">DTLS_ALERT_INTERNAL_ERROR</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00058">alert.h:58</a></div></div>
<div class="ttc" id="global_8h_html_aabc56baaf04f922a1ea0dda7691fec0a"><div class="ttname"><a href="global_8h.html#aabc56baaf04f922a1ea0dda7691fec0a">uint24</a></div><div class="ttdeci">unsigned char uint24[3]</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00049">global.h:49</a></div></div>
<div class="ttc" id="crypto_8h_html_addc8fcbbdd80ba924d0ded2a6bae97f4"><div class="ttname"><a href="crypto_8h.html#addc8fcbbdd80ba924d0ded2a6bae97f4">dtls_kb_remote_write_key</a></div><div class="ttdeci">#define dtls_kb_remote_write_key(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00159">crypto.h:159</a></div></div>
<div class="ttc" id="dtls_8c_html_a0844494b0b76acb7bcf832ae74fb25c0"><div class="ttname"><a href="dtls_8c.html#a0844494b0b76acb7bcf832ae74fb25c0">HASH_DEL_PEER</a></div><div class="ttdeci">#define HASH_DEL_PEER(head, delptr)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00069">dtls.c:69</a></div></div>
<div class="ttc" id="peer_8h_html_a9d0ec25ba319a38b17f30cf156e85c51"><div class="ttname"><a href="peer_8h.html#a9d0ec25ba319a38b17f30cf156e85c51">dtls_security_params_free_other</a></div><div class="ttdeci">static void dtls_security_params_free_other(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00097">peer.h:97</a></div></div>
<div class="ttc" id="global_8h_html_aaace8dce4341d910140609a96bb300db"><div class="ttname"><a href="global_8h.html#aaace8dce4341d910140609a96bb300db">TLS_CLIENT_CERTIFICATE_TYPE_ECDSA_SIGN</a></div><div class="ttdeci">#define TLS_CLIENT_CERTIFICATE_TYPE_ECDSA_SIGN</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00100">global.h:100</a></div></div>
<div class="ttc" id="alert_8h_html_a4242f419ffdd4b83bfaa2a0935ed2b6d"><div class="ttname"><a href="alert_8h.html#a4242f419ffdd4b83bfaa2a0935ed2b6d">dtls_alert_create</a></div><div class="ttdeci">static int dtls_alert_create(dtls_alert_level_t level, dtls_alert_t desc)</div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00071">alert.h:71</a></div></div>
<div class="ttc" id="dtls_8c_html_ad6ebff8518bb1d53ba888baf6898ee21"><div class="ttname"><a href="dtls_8c.html#ad6ebff8518bb1d53ba888baf6898ee21">dtls_send_server_hello_done</a></div><div class="ttdeci">static int dtls_send_server_hello_done(dtls_context_t *ctx, dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02061">dtls.c:2061</a></div></div>
<div class="ttc" id="debug_8h_html_a0f158325426415d9efb5a36bebf45844"><div class="ttname"><a href="debug_8h.html#a0f158325426415d9efb5a36bebf45844">dtls_debug</a></div><div class="ttdeci">#define dtls_debug(...)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00139">debug.h:139</a></div></div>
<div class="ttc" id="dtls_8h_html_a44399f223a3e1c8a8bf3fc638a06a4d7"><div class="ttname"><a href="dtls_8h.html#a44399f223a3e1c8a8bf3fc638a06a4d7">DTLS_HT_SERVER_HELLO_DONE</a></div><div class="ttdeci">#define DTLS_HT_SERVER_HELLO_DONE</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00349">dtls.h:349</a></div></div>
<div class="ttc" id="dtls_8c_html_a7730a402edfca00c35bc1c7c09eb2fb9"><div class="ttname"><a href="dtls_8c.html#a7730a402edfca00c35bc1c7c09eb2fb9">dtls_send_server_hello</a></div><div class="ttdeci">static int dtls_send_server_hello(dtls_context_t *ctx, dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01736">dtls.c:1736</a></div></div>
<div class="ttc" id="crypto_8h_html_ab96c8e0773a14d1ce1621eed1a78e2bd"><div class="ttname"><a href="crypto_8h.html#ab96c8e0773a14d1ce1621eed1a78e2bd">DTLS_PSK_MAX_CLIENT_IDENTITY_LEN</a></div><div class="ttdeci">#define DTLS_PSK_MAX_CLIENT_IDENTITY_LEN</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00089">crypto.h:89</a></div></div>
<div class="ttc" id="global_8h_html_a7e080d630a40510f655bf6982c555063"><div class="ttname"><a href="global_8h.html#a7e080d630a40510f655bf6982c555063">TLS_EXT_ELLIPTIC_CURVES</a></div><div class="ttdeci">#define TLS_EXT_ELLIPTIC_CURVES</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00085">global.h:85</a></div></div>
<div class="ttc" id="dtls_8c_html_aa5a4609da11d9496490853de9c2bf6fa"><div class="ttname"><a href="dtls_8c.html#aa5a4609da11d9496490853de9c2bf6fa">DTLS_CH_LENGTH_MAX</a></div><div class="ttdeci">#define DTLS_CH_LENGTH_MAX</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00077">dtls.c:77</a></div></div>
<div class="ttc" id="dtls__time_8h_html"><div class="ttname"><a href="dtls__time_8h.html">dtls_time.h</a></div><div class="ttdoc">Clock Handling. </div></div>
<div class="ttc" id="structdtls__hs__state__t_html_a991b95919538531d730f74045e4fe3b1"><div class="ttname"><a href="structdtls__hs__state__t.html#a991b95919538531d730f74045e4fe3b1">dtls_hs_state_t::hs_hash</a></div><div class="ttdeci">dtls_hash_ctx hs_hash</div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00062">state.h:62</a></div></div>
<div class="ttc" id="dtls_8c_html_a4c0c656efcfd0e33595914171e51ae6d"><div class="ttname"><a href="dtls_8c.html#a4c0c656efcfd0e33595914171e51ae6d">DTLS_SKEXECPSK_LENGTH_MIN</a></div><div class="ttdeci">#define DTLS_SKEXECPSK_LENGTH_MIN</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00082">dtls.c:82</a></div></div>
<div class="ttc" id="dtls_8c_html_abd652cf0e4512727591d3ec8ca066ace"><div class="ttname"><a href="dtls_8c.html#abd652cf0e4512727591d3ec8ca066ace">DTLS_COOKIE_LENGTH_MAX</a></div><div class="ttdeci">#define DTLS_COOKIE_LENGTH_MAX</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00076">dtls.c:76</a></div></div>
<div class="ttc" id="structnetq__t_html_afe91256ff5267fc680b96efd3bd8635a"><div class="ttname"><a href="structnetq__t.html#afe91256ff5267fc680b96efd3bd8635a">netq_t::t</a></div><div class="ttdeci">clock_time_t t</div><div class="ttdef"><b>Definition:</b> <a href="netq_8h_source.html#l00041">netq.h:41</a></div></div>
<div class="ttc" id="dtls_8c_html_a915dccbe7e71d52d2650378f3aaad054"><div class="ttname"><a href="dtls_8c.html#a915dccbe7e71d52d2650378f3aaad054">check_server_key_exchange_psk</a></div><div class="ttdeci">static int check_server_key_exchange_psk(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02687">dtls.c:2687</a></div></div>
<div class="ttc" id="dtls_8c_html_a85d3d5311baabdaa06b7824528eef4e5"><div class="ttname"><a href="dtls_8c.html#a85d3d5311baabdaa06b7824528eef4e5">DTLS_HV_LENGTH</a></div><div class="ttdeci">#define DTLS_HV_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00078">dtls.c:78</a></div></div>
<div class="ttc" id="dtls_8h_html_af8ce2230240b6d3c36b216ef459baff1"><div class="ttname"><a href="dtls_8h.html#af8ce2230240b6d3c36b216ef459baff1">DTLS_CT_ALERT</a></div><div class="ttdeci">#define DTLS_CT_ALERT</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00326">dtls.h:326</a></div></div>
<div class="ttc" id="crypto_8h_html_a0df6db4f8c29f2b0aa5a1363b4f9127f"><div class="ttname"><a href="crypto_8h.html#a0df6db4f8c29f2b0aa5a1363b4f9127f">MAX_KEYBLOCK_LENGTH</a></div><div class="ttdeci">#define MAX_KEYBLOCK_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00055">crypto.h:55</a></div></div>
<div class="ttc" id="group__netq_html_ga9eba9e66570dcdfc933c6cf843694444"><div class="ttname"><a href="group__netq.html#ga9eba9e66570dcdfc933c6cf843694444">netq_init</a></div><div class="ttdeci">static void netq_init()</div><div class="ttdef"><b>Definition:</b> <a href="netq_8h_source.html#l00058">netq.h:58</a></div></div>
<div class="ttc" id="dtls_8c_html_a45d793d73836bf96dacb1d558f81b6c7"><div class="ttname"><a href="dtls_8c.html#a45d793d73836bf96dacb1d558f81b6c7">prf_label_finished</a></div><div class="ttdeci">static const unsigned char prf_label_finished[]</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00121">dtls.c:121</a></div></div>
<div class="ttc" id="dtls_8h_html_a5c6625ffcf61189392768253e8919a45"><div class="ttname"><a href="dtls_8h.html#a5c6625ffcf61189392768253e8919a45">dtls_handshake_header_t</a></div><div class="ttdeci">dtls_handshake_header_t</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00362">dtls.h:362</a></div></div>
<div class="ttc" id="dtls_8c_html_a0ce6e5416f5479558116b881d3eb1ad6"><div class="ttname"><a href="dtls_8c.html#a0ce6e5416f5479558116b881d3eb1ad6">HASH_FIND_PEER</a></div><div class="ttdeci">#define HASH_FIND_PEER(head, sess, out)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00065">dtls.c:65</a></div></div>
<div class="ttc" id="dtls_8c_html_a12e4cab07baba9eae2a0182f4e0bf72d"><div class="ttname"><a href="dtls_8c.html#a12e4cab07baba9eae2a0182f4e0bf72d">dtls_send_client_key_exchange</a></div><div class="ttdeci">static int dtls_send_client_key_exchange(dtls_context_t *ctx, dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02164">dtls.c:2164</a></div></div>
<div class="ttc" id="global_8h_html_ae136afe82bd9031a4c1c604de0cb0118"><div class="ttname"><a href="global_8h.html#ae136afe82bd9031a4c1c604de0cb0118">TLS_EXT_ENCRYPT_THEN_MAC</a></div><div class="ttdeci">#define TLS_EXT_ENCRYPT_THEN_MAC</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00090">global.h:90</a></div></div>
<div class="ttc" id="dtls_8c_html_ad8c8390d0a1592207c4ea6dd0a623a9a"><div class="ttname"><a href="dtls_8c.html#ad8c8390d0a1592207c4ea6dd0a623a9a">dtls_check_tls_extension</a></div><div class="ttdeci">static int dtls_check_tls_extension(dtls_peer_t *peer, uint8 *data, size_t data_length, int client_hello)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00777">dtls.c:777</a></div></div>
<div class="ttc" id="crypto_8c_html_a25930cdb27a6ffcf05e2c2a9c95a6af8"><div class="ttname"><a href="crypto_8c.html#a25930cdb27a6ffcf05e2c2a9c95a6af8">dtls_handshake_new</a></div><div class="ttdeci">dtls_handshake_parameters_t * dtls_handshake_new()</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00123">crypto.c:123</a></div></div>
<div class="ttc" id="debug_8h_html_ab22e3494f6186183820142ba279fe9ae"><div class="ttname"><a href="debug_8h.html#ab22e3494f6186183820142ba279fe9ae">dtls_alert</a></div><div class="ttdeci">#define dtls_alert(...)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00134">debug.h:134</a></div></div>
<div class="ttc" id="group__netq_html_gac769de2e30bcf2c2db89ff10822219d4"><div class="ttname"><a href="group__netq.html#gac769de2e30bcf2c2db89ff10822219d4">netq_head</a></div><div class="ttdeci">netq_t * netq_head(list_t queue)</div><div class="ttdef"><b>Definition:</b> <a href="netq_8c_source.html#l00080">netq.c:80</a></div></div>
<div class="ttc" id="dtls_8c_html_a3de5b3956733293d3e19d83d3cc8d9bb"><div class="ttname"><a href="dtls_8c.html#a3de5b3956733293d3e19d83d3cc8d9bb">check_server_key_exchange_ecdsa</a></div><div class="ttdeci">static int check_server_key_exchange_ecdsa(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02604">dtls.c:2604</a></div></div>
<div class="ttc" id="group__clock_html_gae3ced0551b26c9b99cb45a86f34d100a"><div class="ttname"><a href="group__clock.html#gae3ced0551b26c9b99cb45a86f34d100a">CLOCK_SECOND</a></div><div class="ttdeci">#define CLOCK_SECOND</div><div class="ttdef"><b>Definition:</b> <a href="dtls__time_8h_source.html#l00052">dtls_time.h:52</a></div></div>
<div class="ttc" id="debug_8c_html_a66cb8756d40a3326315d9b5f003a5a76"><div class="ttname"><a href="debug_8c.html#a66cb8756d40a3326315d9b5f003a5a76">dtls_dsrv_log_addr</a></div><div class="ttdeci">void dtls_dsrv_log_addr(log_t level, const char *name, const session_t *addr)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8c_source.html#l00277">debug.c:277</a></div></div>
<div class="ttc" id="crypto_8h_html_a5a0bdff7c0889f35601b4935098508a0"><div class="ttname"><a href="crypto_8h.html#a5a0bdff7c0889f35601b4935098508a0">DTLS_RANDOM_LENGTH</a></div><div class="ttdeci">#define DTLS_RANDOM_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00060">crypto.h:60</a></div></div>
<div class="ttc" id="group__HMAC_html_gaa1eb35fcb2c2eb69eebaefa8eb4a790d"><div class="ttname"><a href="group__HMAC.html#gaa1eb35fcb2c2eb69eebaefa8eb4a790d">dtls_hmac_init</a></div><div class="ttdeci">void dtls_hmac_init(dtls_hmac_context_t *ctx, const unsigned char *key, size_t klen)</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8c_source.html#l00094">hmac.c:94</a></div></div>
<div class="ttc" id="debug_8h_html_a4a3c60a1e54594e78cd207c57ddb1378"><div class="ttname"><a href="debug_8h.html#a4a3c60a1e54594e78cd207c57ddb1378">check_stack</a></div><div class="ttdeci">static void check_stack()</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00059">debug.h:59</a></div></div>
<div class="ttc" id="global_8h_html_a5d17863db920927ef8160547541b58e3"><div class="ttname"><a href="global_8h.html#a5d17863db920927ef8160547541b58e3">TLS_EXT_EC_POINT_FORMATS</a></div><div class="ttdeci">#define TLS_EXT_EC_POINT_FORMATS</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00086">global.h:86</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__psk__t_html"><div class="ttname"><a href="structdtls__handshake__parameters__psk__t.html">dtls_handshake_parameters_psk_t</a></div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00094">crypto.h:94</a></div></div>
<div class="ttc" id="structdtls__hmac__context__t_html"><div class="ttname"><a href="structdtls__hmac__context__t.html">dtls_hmac_context_t</a></div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00095">hmac.h:95</a></div></div>
<div class="ttc" id="dtls_8c_html_ab3af0ee4375c0da833aacec49c6fd8ad"><div class="ttname"><a href="dtls_8c.html#ab3af0ee4375c0da833aacec49c6fd8ad">dtls_send_hello_request</a></div><div class="ttdeci">static int dtls_send_hello_request(dtls_context_t *ctx, dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02948">dtls.c:2948</a></div></div>
<div class="ttc" id="structdtls__peer__t_html_aa176a7ffe3a780dc97a716dfffb54992"><div class="ttname"><a href="structdtls__peer__t.html#aa176a7ffe3a780dc97a716dfffb54992">dtls_peer_t::handshake_params</a></div><div class="ttdeci">dtls_handshake_parameters_t * handshake_params</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00065">peer.h:65</a></div></div>
<div class="ttc" id="hmac_8h_html_afe0af64930ac5d6a51289df6d1eb4f52"><div class="ttname"><a href="hmac_8h.html#afe0af64930ac5d6a51289df6d1eb4f52">dtls_hash_init</a></div><div class="ttdeci">static void dtls_hash_init(dtls_hash_t ctx)</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00043">hmac.h:43</a></div></div>
<div class="ttc" id="structdtls__ecdsa__key__t_html_aaceb7ea4b4f9e74fb2ec85c49746132f"><div class="ttname"><a href="structdtls__ecdsa__key__t.html#aaceb7ea4b4f9e74fb2ec85c49746132f">dtls_ecdsa_key_t::pub_key_y</a></div><div class="ttdeci">const unsigned char * pub_key_y</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00067">dtls.h:67</a></div></div>
<div class="ttc" id="crypto_8h_html_a1f320854c9f4e9b2105649b3624976b0"><div class="ttname"><a href="crypto_8h.html#a1f320854c9f4e9b2105649b3624976b0">dtls_kb_mac_secret_size</a></div><div class="ttdeci">#define dtls_kb_mac_secret_size(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00154">crypto.h:154</a></div></div>
<div class="ttc" id="structnetq__t_html_aaca5f6407bd7b3162d9ee7e7e7b8f0ff"><div class="ttname"><a href="structnetq__t.html#aaca5f6407bd7b3162d9ee7e7e7b8f0ff">netq_t::peer</a></div><div class="ttdeci">dtls_peer_t * peer</div><div class="ttdef"><b>Definition:</b> <a href="netq_8h_source.html#l00044">netq.h:44</a></div></div>
<div class="ttc" id="dtls_8c_html_ab9251eac8015afc7985ff4398657ea3f"><div class="ttname"><a href="dtls_8c.html#ab9251eac8015afc7985ff4398657ea3f">check_client_keyexchange</a></div><div class="ttdeci">static int check_client_keyexchange(dtls_context_t *ctx, dtls_handshake_parameters_t *handshake, uint8 *data, size_t length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01005">dtls.c:1005</a></div></div>
<div class="ttc" id="dtls_8c_html_aa90f5eb6954137d5e098e29143c2586a"><div class="ttname"><a href="dtls_8c.html#aa90f5eb6954137d5e098e29143c2586a">dtls_close</a></div><div class="ttdeci">int dtls_close(dtls_context_t *ctx, const session_t *remote)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01494">dtls.c:1494</a></div></div>
<div class="ttc" id="structnetq__t_html_a9998944e43a39a2e5700156876a312e0"><div class="ttname"><a href="structnetq__t.html#a9998944e43a39a2e5700156876a312e0">netq_t::epoch</a></div><div class="ttdeci">uint16_t epoch</div><div class="ttdef"><b>Definition:</b> <a href="netq_8h_source.html#l00045">netq.h:45</a></div></div>
<div class="ttc" id="alert_8h_html_a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649"><div class="ttname"><a href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdae3249841cb226881ce6dadffb9f22649">DTLS_ALERT_DECODE_ERROR</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00054">alert.h:54</a></div></div>
<div class="ttc" id="dtls_8c_html_a91b2653747ca1e4058ae3b350019188b"><div class="ttname"><a href="dtls_8c.html#a91b2653747ca1e4058ae3b350019188b">check_finished</a></div><div class="ttdeci">static int check_finished(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01104">dtls.c:1104</a></div></div>
<div class="ttc" id="debug_8h_html_ad4c9c94c054579b73789fead587c8514"><div class="ttname"><a href="debug_8h.html#ad4c9c94c054579b73789fead587c8514">dtls_crit</a></div><div class="ttdeci">#define dtls_crit(...)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00135">debug.h:135</a></div></div>
<div class="ttc" id="dtls_8c_html_ad699a00b7ff5a71fa5b7fbc79a4dd9a8"><div class="ttname"><a href="dtls_8c.html#ad699a00b7ff5a71fa5b7fbc79a4dd9a8">verify_ext_eliptic_curves</a></div><div class="ttdeci">static int verify_ext_eliptic_curves(uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00701">dtls.c:701</a></div></div>
<div class="ttc" id="dtls_8c_html_a09a0896d586ff27855ced6930cc17023"><div class="ttname"><a href="dtls_8c.html#a09a0896d586ff27855ced6930cc17023">SKIP_VAR_FIELD</a></div><div class="ttdeci">#define SKIP_VAR_FIELD(P, L, T)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00106">dtls.c:106</a></div></div>
<div class="ttc" id="dtls_8c_html_a6570b93f9f19e6abceef85c566fe3696"><div class="ttname"><a href="dtls_8c.html#a6570b93f9f19e6abceef85c566fe3696">DTLS_CE_LENGTH</a></div><div class="ttdeci">#define DTLS_CE_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00080">dtls.c:80</a></div></div>
<div class="ttc" id="dtls_8c_html_a94199c9fa65db19e0f761e3ff973eb4b"><div class="ttname"><a href="dtls_8c.html#a94199c9fa65db19e0f761e3ff973eb4b">calculate_key_block</a></div><div class="ttdeci">static int calculate_key_block(dtls_context_t *ctx, dtls_handshake_parameters_t *handshake, dtls_peer_t *peer, session_t *session, dtls_peer_type role)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00599">dtls.c:599</a></div></div>
<div class="ttc" id="global_8h_html_a9fc59fb51c2e3cb4da6fb19bc8cad080"><div class="ttname"><a href="global_8h.html#a9fc59fb51c2e3cb4da6fb19bc8cad080">DTLS_DEFAULT_MAX_RETRANSMIT</a></div><div class="ttdeci">#define DTLS_DEFAULT_MAX_RETRANSMIT</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00070">global.h:70</a></div></div>
<div class="ttc" id="dtls_8c_html_a83b260e812e69f1dae18497d167770a9"><div class="ttname"><a href="dtls_8c.html#a83b260e812e69f1dae18497d167770a9">PRF_LABEL_SIZE</a></div><div class="ttdeci">#define PRF_LABEL_SIZE(Label)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00115">dtls.c:115</a></div></div>
<div class="ttc" id="dtls_8c_html_ab199f50f39a96464ff7b532f2635ce9d"><div class="ttname"><a href="dtls_8c.html#ab199f50f39a96464ff7b532f2635ce9d">handle_handshake</a></div><div class="ttdeci">static int handle_handshake(dtls_context_t *ctx, dtls_peer_t *peer, session_t *session, const dtls_peer_type role, const dtls_state_t state, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03347">dtls.c:3347</a></div></div>
<div class="ttc" id="dtls_8h_html_a25f0afef67a1fd8d9e3e61074d11e2f5"><div class="ttname"><a href="dtls_8h.html#a25f0afef67a1fd8d9e3e61074d11e2f5">DTLS_HT_CLIENT_HELLO</a></div><div class="ttdeci">#define DTLS_HT_CLIENT_HELLO</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00343">dtls.h:343</a></div></div>
<div class="ttc" id="dtls_8c_html_acf0d50c9f224c0677988f13e947e9523"><div class="ttname"><a href="dtls_8c.html#acf0d50c9f224c0677988f13e947e9523">HASH_ADD_PEER</a></div><div class="ttdeci">#define HASH_ADD_PEER(head, sess, add)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00067">dtls.c:67</a></div></div>
<div class="ttc" id="global_8h_html_adde6aaee8457bee49c2a92621fe22b79"><div class="ttname"><a href="global_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a></div><div class="ttdeci">unsigned char uint8</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00047">global.h:47</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__t_html_a67f85371953c8ae07ec110cb39c13125"><div class="ttname"><a href="structdtls__handshake__parameters__t.html#a67f85371953c8ae07ec110cb39c13125">dtls_handshake_parameters_t::compression</a></div><div class="ttdeci">dtls_compression_t compression</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00127">crypto.h:127</a></div></div>
<div class="ttc" id="dtls_8c_html_a734cf32b1c8b99e21d57006da24fd808"><div class="ttname"><a href="dtls_8c.html#a734cf32b1c8b99e21d57006da24fd808">dtls_set_record_header</a></div><div class="ttdeci">static uint8 * dtls_set_record_header(uint8 type, dtls_security_parameters_t *security, uint8 *buf)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00390">dtls.c:390</a></div></div>
<div class="ttc" id="dtls_8c_html_aa57a9ccb1344c5baf8bd3adf35f3beeb"><div class="ttname"><a href="dtls_8c.html#aa57a9ccb1344c5baf8bd3adf35f3beeb">dtls_retransmit</a></div><div class="ttdeci">static void dtls_retransmit(dtls_context_t *context, netq_t *node)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03890">dtls.c:3890</a></div></div>
<div class="ttc" id="structdtls__security__parameters__t_html_a100dc82ee41004df1d9f211873332f87"><div class="ttname"><a href="structdtls__security__parameters__t.html#a100dc82ee41004df1d9f211873332f87">dtls_security_parameters_t::rseq</a></div><div class="ttdeci">uint64_t rseq</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00104">crypto.h:104</a></div></div>
<div class="ttc" id="dtls_8c_html_a42886cd9a1fd728f47ea40d38dfabcda"><div class="ttname"><a href="dtls_8c.html#a42886cd9a1fd728f47ea40d38dfabcda">prf_label_key</a></div><div class="ttdeci">static const unsigned char prf_label_key[]</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00118">dtls.c:118</a></div></div>
<div class="ttc" id="dtls_8c_html_ad60bf1197fa1a074f91aed508cfefa62"><div class="ttname"><a href="dtls_8c.html#ad60bf1197fa1a074f91aed508cfefa62">dtls_connect_peer</a></div><div class="ttdeci">int dtls_connect_peer(dtls_context_t *ctx, dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03826">dtls.c:3826</a></div></div>
<div class="ttc" id="global_8h_html_ada7e71454d685b693df45b2c1ea0c59ba197892e216f63ddbc91c2b006a2d4c1e"><div class="ttname"><a href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59ba197892e216f63ddbc91c2b006a2d4c1e">TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8</a></div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00077">global.h:77</a></div></div>
<div class="ttc" id="dtls_8c_html_afc54bc2ed42b4b65ad8f01abca9a8772"><div class="ttname"><a href="dtls_8c.html#afc54bc2ed42b4b65ad8f01abca9a8772">dtls_send_server_hello_msgs</a></div><div class="ttdeci">static int dtls_send_server_hello_msgs(dtls_context_t *ctx, dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02073">dtls.c:2073</a></div></div>
<div class="ttc" id="dtls_8h_html_a9abc650dd8339a227ddd165ede9350d0"><div class="ttname"><a href="dtls_8h.html#a9abc650dd8339a227ddd165ede9350d0">DTLS_HT_CERTIFICATE_VERIFY</a></div><div class="ttdeci">#define DTLS_HT_CERTIFICATE_VERIFY</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00350">dtls.h:350</a></div></div>
<div class="ttc" id="crypto_8h_html_a9b039263057e157e1427c5d316133c3d"><div class="ttname"><a href="crypto_8h.html#a9b039263057e157e1427c5d316133c3d">DTLS_EC_KEY_SIZE</a></div><div class="ttdeci">#define DTLS_EC_KEY_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00309">crypto.h:309</a></div></div>
<div class="ttc" id="numeric_8h_html_a074d352855e1ffde4c2ddb6a6fea01b9"><div class="ttname"><a href="numeric_8h.html#a074d352855e1ffde4c2ddb6a6fea01b9">dtls_int_to_uint16</a></div><div class="ttdeci">static int dtls_int_to_uint16(unsigned char *field, uint16_t value)</div><div class="ttdef"><b>Definition:</b> <a href="numeric_8h_source.html#l00046">numeric.h:46</a></div></div>
<div class="ttc" id="hmac_8h_html_adb5ad07ab9a1adcdfdc20e13aa37bee6"><div class="ttname"><a href="hmac_8h.html#adb5ad07ab9a1adcdfdc20e13aa37bee6">dtls_hash_update</a></div><div class="ttdeci">static void dtls_hash_update(dtls_hash_t ctx, const unsigned char *input, size_t len)</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00048">hmac.h:48</a></div></div>
<div class="ttc" id="structsession__t_html_a0bb4423cd29b415a4cf6c32d5d9a43e4"><div class="ttname"><a href="structsession__t.html#a0bb4423cd29b415a4cf6c32d5d9a43e4">session_t::addr</a></div><div class="ttdeci">union session_t::@2 addr</div></div>
<div class="ttc" id="hmac_8h_html_a7fb242dc4ddd717e5eb67d4bf89618d5"><div class="ttname"><a href="hmac_8h.html#a7fb242dc4ddd717e5eb67d4bf89618d5">DTLS_HASH_CTX_SIZE</a></div><div class="ttdeci">#define DTLS_HASH_CTX_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00040">hmac.h:40</a></div></div>
<div class="ttc" id="structdtls__peer__t_html"><div class="ttname"><a href="structdtls__peer__t.html">dtls_peer_t</a></div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00052">peer.h:52</a></div></div>
<div class="ttc" id="global_8h_html_ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd"><div class="ttname"><a href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59bacf33de998fd00f096eebbb0742d80abd">TLS_NULL_WITH_NULL_NULL</a></div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00075">global.h:75</a></div></div>
<div class="ttc" id="dtls_8h_html"><div class="ttname"><a href="dtls_8h.html">dtls.h</a></div><div class="ttdoc">High level DTLS API and visible structures. </div></div>
<div class="ttc" id="alert_8h_html_a41c9f2d4035bc6bf5a0f437842a9ecbd"><div class="ttname"><a href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbd">dtls_alert_t</a></div><div class="ttdeci">dtls_alert_t</div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00039">alert.h:39</a></div></div>
<div class="ttc" id="dtls_8h_html_a6f49d7b0a6e9190d71d51b1ee9ff3bd5"><div class="ttname"><a href="dtls_8h.html#a6f49d7b0a6e9190d71d51b1ee9ff3bd5">DTLS_HT_CERTIFICATE_REQUEST</a></div><div class="ttdeci">#define DTLS_HT_CERTIFICATE_REQUEST</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00348">dtls.h:348</a></div></div>
<div class="ttc" id="debug_8h_html_ab27d2c7cae1e8022e93562ecda9140b6"><div class="ttname"><a href="debug_8h.html#ab27d2c7cae1e8022e93562ecda9140b6">dtls_debug_dump</a></div><div class="ttdeci">#define dtls_debug_dump(name, buf, length)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00141">debug.h:141</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35a97f1fd8aadc13e8d721d5e40d42a0330"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35a97f1fd8aadc13e8d721d5e40d42a0330">DTLS_STATE_WAIT_SERVERKEYEXCHANGE</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00046">state.h:46</a></div></div>
<div class="ttc" id="dtls_8c_html_a97496e1be0f2fe54873b35ee8bf0d462"><div class="ttname"><a href="dtls_8c.html#a97496e1be0f2fe54873b35ee8bf0d462">mycookie</a></div><div class="ttdeci">#define mycookie</div></div>
<div class="ttc" id="dtls_8c_html_ae97c368900c13dc7074c09e8848afa8f"><div class="ttname"><a href="dtls_8c.html#ae97c368900c13dc7074c09e8848afa8f">DTLS_RH_LENGTH</a></div><div class="ttdeci">#define DTLS_RH_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00073">dtls.c:73</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35a88bc0f5ff63003f57a59700dc4b55553"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35a88bc0f5ff63003f57a59700dc4b55553">DTLS_STATE_CLOSED</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00051">state.h:51</a></div></div>
<div class="ttc" id="group__HMAC_html_gab98c992f3f9cc3c2d75077ddd46049bf"><div class="ttname"><a href="group__HMAC.html#gab98c992f3f9cc3c2d75077ddd46049bf">dtls_hmac_finalize</a></div><div class="ttdeci">int dtls_hmac_finalize(dtls_hmac_context_t *ctx, unsigned char *result)</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8c_source.html#l00127">hmac.c:127</a></div></div>
<div class="ttc" id="structdtls__ecdsa__key__t_html_aa54efc762737c1b94eaebae1262d4221"><div class="ttname"><a href="structdtls__ecdsa__key__t.html#aa54efc762737c1b94eaebae1262d4221">dtls_ecdsa_key_t::pub_key_x</a></div><div class="ttdeci">const unsigned char * pub_key_x</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00066">dtls.h:66</a></div></div>
<div class="ttc" id="numeric_8h_html_ae32dd0743658f1aa5a723d5a8357521f"><div class="ttname"><a href="numeric_8h.html#ae32dd0743658f1aa5a723d5a8357521f">dtls_uint16_to_int</a></div><div class="ttdeci">static uint16_t dtls_uint16_to_int(const unsigned char *field)</div><div class="ttdef"><b>Definition:</b> <a href="numeric_8h_source.html#l00099">numeric.h:99</a></div></div>
<div class="ttc" id="dtls_8c_html_a784ec579660900e758a9b7de84150c9b"><div class="ttname"><a href="dtls_8c.html#a784ec579660900e758a9b7de84150c9b">prf_label_master</a></div><div class="ttdeci">static const unsigned char prf_label_master[]</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00117">dtls.c:117</a></div></div>
<div class="ttc" id="dtls_8c_html_a175d8e65080497463d13caf20e961500"><div class="ttname"><a href="dtls_8c.html#a175d8e65080497463d13caf20e961500">dtls_get_epoch</a></div><div class="ttdeci">#define dtls_get_epoch(H)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00060">dtls.c:60</a></div></div>
<div class="ttc" id="peer_8h_html_a48abcad7383e1db957af9b4fed030d52"><div class="ttname"><a href="peer_8h.html#a48abcad7383e1db957af9b4fed030d52">dtls_security_params</a></div><div class="ttdeci">static dtls_security_parameters_t * dtls_security_params(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00079">peer.h:79</a></div></div>
<div class="ttc" id="crypto_8c_html_afa2d9b2a195a1d8e8c56b1af8cb7bc82"><div class="ttname"><a href="crypto_8c.html#afa2d9b2a195a1d8e8c56b1af8cb7bc82">dtls_ecdsa_create_sig</a></div><div class="ttdeci">void dtls_ecdsa_create_sig(const unsigned char *priv_key, size_t key_size, const unsigned char *client_random, size_t client_random_size, const unsigned char *server_random, size_t server_random_size, const unsigned char *keyx_params, size_t keyx_params_size, uint32_t point_r[9], uint32_t point_s[9])</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00463">crypto.c:463</a></div></div>
<div class="ttc" id="structnetq__t_html_ae0c2648acf87d1e6f2566bc3600771b6"><div class="ttname"><a href="structnetq__t.html#ae0c2648acf87d1e6f2566bc3600771b6">netq_t::timeout</a></div><div class="ttdeci">unsigned int timeout</div><div class="ttdef"><b>Definition:</b> <a href="netq_8h_source.html#l00042">netq.h:42</a></div></div>
<div class="ttc" id="crypto_8h_html_aea906786dcfa12acb320df731c8db7f6"><div class="ttname"><a href="crypto_8h.html#aea906786dcfa12acb320df731c8db7f6">dtls_kb_server_write_key</a></div><div class="ttdeci">#define dtls_kb_server_write_key(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00157">crypto.h:157</a></div></div>
<div class="ttc" id="crypto_8c_html_a802b3a2b267747a76d4557c6c9a899d7"><div class="ttname"><a href="crypto_8c.html#a802b3a2b267747a76d4557c6c9a899d7">dtls_ecdsa_verify_sig_hash</a></div><div class="ttdeci">int dtls_ecdsa_verify_sig_hash(const unsigned char *pub_key_x, const unsigned char *pub_key_y, size_t key_size, const unsigned char *sign_hash, size_t sign_hash_size, unsigned char *result_r, unsigned char *result_s)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00483">crypto.c:483</a></div></div>
<div class="ttc" id="group__netq_html_ga108e6c43e524fd4b23a5d4731631fae3"><div class="ttname"><a href="group__netq.html#ga108e6c43e524fd4b23a5d4731631fae3">netq_pop_first</a></div><div class="ttdeci">netq_t * netq_pop_first(list_t queue)</div><div class="ttdef"><b>Definition:</b> <a href="netq_8c_source.html#l00103">netq.c:103</a></div></div>
<div class="ttc" id="structdtls__hs__state__t_html_a4e2184c917d1ad46d308e8770193f542"><div class="ttname"><a href="structdtls__hs__state__t.html#a4e2184c917d1ad46d308e8770193f542">dtls_hs_state_t::mseq_r</a></div><div class="ttdeci">uint16_t mseq_r</div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00056">state.h:56</a></div></div>
<div class="ttc" id="structnetq__t_html_a13d74bc65c8879b894698935fbbe2246"><div class="ttname"><a href="structnetq__t.html#a13d74bc65c8879b894698935fbbe2246">netq_t::type</a></div><div class="ttdeci">uint8_t type</div><div class="ttdef"><b>Definition:</b> <a href="netq_8h_source.html#l00046">netq.h:46</a></div></div>
<div class="ttc" id="crypto_8h_html_a72899232c09d09b86326c6f234addc02"><div class="ttname"><a href="crypto_8h.html#a72899232c09d09b86326c6f234addc02">dtls_kb_client_mac_secret</a></div><div class="ttdeci">#define dtls_kb_client_mac_secret(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00143">crypto.h:143</a></div></div>
<div class="ttc" id="dtls_8c_html_aacf8643991dec574dcb09a280357ae4f"><div class="ttname"><a href="dtls_8c.html#aacf8643991dec574dcb09a280357ae4f">prf_label_server</a></div><div class="ttdeci">static const unsigned char prf_label_server[]</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00120">dtls.c:120</a></div></div>
<div class="ttc" id="dtls_8c_html_a5676a0ceeeabd1ec38d378212f7af4a1"><div class="ttname"><a href="dtls_8c.html#a5676a0ceeeabd1ec38d378212f7af4a1">dtls_renegotiate</a></div><div class="ttdeci">int dtls_renegotiate(dtls_context_t *ctx, const session_t *dst)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02956">dtls.c:2956</a></div></div>
<div class="ttc" id="structdtls__security__parameters__t_html_a6a72df7ab1151f81e49d464175fcaf2a"><div class="ttname"><a href="structdtls__security__parameters__t.html#a6a72df7ab1151f81e49d464175fcaf2a">dtls_security_parameters_t::compression</a></div><div class="ttdeci">dtls_compression_t compression</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00100">crypto.h:100</a></div></div>
<div class="ttc" id="t__list_8h_html_adb42e31bb4fe0df6ec1aa3494902968d"><div class="ttname"><a href="t__list_8h.html#adb42e31bb4fe0df6ec1aa3494902968d">list_head</a></div><div class="ttdeci">static void * list_head(list_t list)</div><div class="ttdef"><b>Definition:</b> <a href="t__list_8h_source.html#l00096">t_list.h:96</a></div></div>
<div class="ttc" id="structdtls__security__parameters__t_html_a21d9fac709d739535b0cbecce4c18830"><div class="ttname"><a href="structdtls__security__parameters__t.html#a21d9fac709d739535b0cbecce4c18830">dtls_security_parameters_t::cipher</a></div><div class="ttdeci">dtls_cipher_t cipher</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00102">crypto.h:102</a></div></div>
<div class="ttc" id="crypto_8h_html_a2648582ddf4c82abc01d8388bd3f15db"><div class="ttname"><a href="crypto_8h.html#a2648582ddf4c82abc01d8388bd3f15db">DTLS_MASTER_SECRET_LENGTH</a></div><div class="ttdeci">#define DTLS_MASTER_SECRET_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00059">crypto.h:59</a></div></div>
<div class="ttc" id="peer_8c_html_a037178c201b2e6b7361570ff700f059d"><div class="ttname"><a href="peer_8c.html#a037178c201b2e6b7361570ff700f059d">dtls_free_peer</a></div><div class="ttdeci">void dtls_free_peer(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8c_source.html#l00041">peer.c:41</a></div></div>
<div class="ttc" id="structdtls__security__parameters__t_html_a1c3a56ea4af8ff71e1ffe77221541f4d"><div class="ttname"><a href="structdtls__security__parameters__t.html#a1c3a56ea4af8ff71e1ffe77221541f4d">dtls_security_parameters_t::key_block</a></div><div class="ttdeci">uint8 key_block[MAX_KEYBLOCK_LENGTH]</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00112">crypto.h:112</a></div></div>
<div class="ttc" id="peer_8h_html_ae30cd4bcffed73f79f17c09e5a1452c8afd8391395303e28ee9b375232cb68a1e"><div class="ttname"><a href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8afd8391395303e28ee9b375232cb68a1e">DTLS_CLIENT</a></div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00047">peer.h:47</a></div></div>
<div class="ttc" id="peer_8h_html_a9c37ce3fd7539154289dd17215179e2d"><div class="ttname"><a href="peer_8h.html#a9c37ce3fd7539154289dd17215179e2d">dtls_security_params_switch</a></div><div class="ttdeci">static void dtls_security_params_switch(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00109">peer.h:109</a></div></div>
<div class="ttc" id="dtls_8c_html_a3171c099d25ed29e31326526b8e1de84"><div class="ttname"><a href="dtls_8c.html#a3171c099d25ed29e31326526b8e1de84">dtls_free_context</a></div><div class="ttdeci">void dtls_free_context(dtls_context_t *ctx)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03802">dtls.c:3802</a></div></div>
<div class="ttc" id="peer_8h_html_ae30cd4bcffed73f79f17c09e5a1452c8"><div class="ttname"><a href="peer_8h.html#ae30cd4bcffed73f79f17c09e5a1452c8">dtls_peer_type</a></div><div class="ttdeci">dtls_peer_type</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00047">peer.h:47</a></div></div>
<div class="ttc" id="structdtls__ecdsa__key__t_html"><div class="ttname"><a href="structdtls__ecdsa__key__t.html">dtls_ecdsa_key_t</a></div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00063">dtls.h:63</a></div></div>
<div class="ttc" id="group__HMAC_html_ga3e84ddbef6bf0084252e16e6c547e332"><div class="ttname"><a href="group__HMAC.html#ga3e84ddbef6bf0084252e16e6c547e332">DTLS_HMAC_MAX</a></div><div class="ttdeci">#define DTLS_HMAC_MAX</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00075">hmac.h:75</a></div></div>
<div class="ttc" id="numeric_8h_html_a6914ee523b27539f4e441bede8c072b4"><div class="ttname"><a href="numeric_8h.html#a6914ee523b27539f4e441bede8c072b4">dtls_int_to_uint32</a></div><div class="ttdeci">static int dtls_int_to_uint32(unsigned char *field, uint32_t value)</div><div class="ttdef"><b>Definition:</b> <a href="numeric_8h_source.html#l00061">numeric.h:61</a></div></div>
<div class="ttc" id="dtls_8c_html_a3db09acb5894f17f4745d7556555bea7"><div class="ttname"><a href="dtls_8c.html#a3db09acb5894f17f4745d7556555bea7">update_hs_hash</a></div><div class="ttdeci">static void update_hs_hash(dtls_peer_t *peer, uint8 *data, size_t length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01070">dtls.c:1070</a></div></div>
<div class="ttc" id="dtls_8c_html_a5ddccf12706c8d18d80b7759454ca164"><div class="ttname"><a href="dtls_8c.html#a5ddccf12706c8d18d80b7759454ca164">DTLS_CKXEC_LENGTH</a></div><div class="ttdeci">#define DTLS_CKXEC_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00085">dtls.c:85</a></div></div>
<div class="ttc" id="dtls_8c_html_aecdb18ea2b899994542ec46b23528738"><div class="ttname"><a href="dtls_8c.html#aecdb18ea2b899994542ec46b23528738">cert_asn1_header</a></div><div class="ttdeci">static const unsigned char cert_asn1_header[]</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00124">dtls.c:124</a></div></div>
<div class="ttc" id="alert_8h_html_a41c9f2d4035bc6bf5a0f437842a9ecbda56a136f4d20b3ce9fb967eedb37371e0"><div class="ttname"><a href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda56a136f4d20b3ce9fb967eedb37371e0">DTLS_ALERT_DECRYPT_ERROR</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00055">alert.h:55</a></div></div>
<div class="ttc" id="dtls_8c_html_a11f53d301448aa8f1dbcfaf77441bd9c"><div class="ttname"><a href="dtls_8c.html#a11f53d301448aa8f1dbcfaf77441bd9c">dtls_new_context</a></div><div class="ttdeci">dtls_context_t * dtls_new_context(void *app_data)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03740">dtls.c:3740</a></div></div>
<div class="ttc" id="t__list_8h_html_a10de2120be61f445c5989c983c1e133b"><div class="ttname"><a href="t__list_8h.html#a10de2120be61f445c5989c983c1e133b">list_remove</a></div><div class="ttdeci">static void list_remove(list_t list, void *item)</div><div class="ttdef"><b>Definition:</b> <a href="t__list_8h_source.html#l00101">t_list.h:101</a></div></div>
<div class="ttc" id="netq_8h_html"><div class="ttname"><a href="netq_8h.html">netq.h</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__t_html_a21ba88c7b062772beb75c5570d257898"><div class="ttname"><a href="structdtls__handshake__parameters__t.html#a21ba88c7b062772beb75c5570d257898">dtls_handshake_parameters_t::master_secret</a></div><div class="ttdeci">uint8 master_secret[DTLS_MASTER_SECRET_LENGTH]</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00122">crypto.h:122</a></div></div>
<div class="ttc" id="dtls_8c_html_aee0f4f3d8541ea6ab9c204761cc6082e"><div class="ttname"><a href="dtls_8c.html#aee0f4f3d8541ea6ab9c204761cc6082e">A_DATA_LEN</a></div><div class="ttdeci">#define A_DATA_LEN</div></div>
<div class="ttc" id="dtls_8c_html_aaafa285eb634873480c0ff429edd8064"><div class="ttname"><a href="dtls_8c.html#aaafa285eb634873480c0ff429edd8064">is_record</a></div><div class="ttdeci">static unsigned int is_record(uint8 *msg, size_t msglen)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00361">dtls.c:361</a></div></div>
<div class="ttc" id="dtls_8c_html_a0bcce8fa79dc3187eb5f1655798ac816"><div class="ttname"><a href="dtls_8c.html#a0bcce8fa79dc3187eb5f1655798ac816">DTLS_CV_LENGTH</a></div><div class="ttdeci">#define DTLS_CV_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00086">dtls.c:86</a></div></div>
<div class="ttc" id="dtls_8c_html_a9e02f1c6e70dab40e56d5131a259521a"><div class="ttname"><a href="dtls_8c.html#a9e02f1c6e70dab40e56d5131a259521a">malloc_context</a></div><div class="ttdeci">static dtls_context_t * malloc_context()</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00152">dtls.c:152</a></div></div>
<div class="ttc" id="alert_8h_html_a5bed06f27f571d7c7d9b9f212c3a0b22"><div class="ttname"><a href="alert_8h.html#a5bed06f27f571d7c7d9b9f212c3a0b22">DTLS_EVENT_CONNECTED</a></div><div class="ttdeci">#define DTLS_EVENT_CONNECTED</div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00065">alert.h:65</a></div></div>
<div class="ttc" id="debug_8h_html_ae1c22127c92fab70da7bf9cae8536e5c"><div class="ttname"><a href="debug_8h.html#ae1c22127c92fab70da7bf9cae8536e5c">dtls_warn</a></div><div class="ttdeci">#define dtls_warn(...)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00136">debug.h:136</a></div></div>
<div class="ttc" id="group__netq_html_gace12cd802d76d5bd98b2eaedc591fd22"><div class="ttname"><a href="group__netq.html#gace12cd802d76d5bd98b2eaedc591fd22">netq_remove</a></div><div class="ttdeci">void netq_remove(list_t queue, netq_t *p)</div><div class="ttdef"><b>Definition:</b> <a href="netq_8c_source.html#l00096">netq.c:96</a></div></div>
<div class="ttc" id="dtls_8c_html_a872c53139e76cab7ec387cc54ae1a11b"><div class="ttname"><a href="dtls_8c.html#a872c53139e76cab7ec387cc54ae1a11b">dtls_send_handshake_msg</a></div><div class="ttdeci">static int dtls_send_handshake_msg(dtls_context_t *ctx, dtls_peer_t *peer, uint8 header_type, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01361">dtls.c:1361</a></div></div>
<div class="ttc" id="dtls_8c_html_abac8adda40bcb694e059e38f6ac115f9"><div class="ttname"><a href="dtls_8c.html#abac8adda40bcb694e059e38f6ac115f9">PRF_LABEL</a></div><div class="ttdeci">#define PRF_LABEL(Label)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00114">dtls.c:114</a></div></div>
<div class="ttc" id="dtls_8c_html_a45841106ebcb5b1373c0312842b90943"><div class="ttname"><a href="dtls_8c.html#a45841106ebcb5b1373c0312842b90943">dtls_create_cookie</a></div><div class="ttdeci">static int dtls_create_cookie(dtls_context_t *ctx, session_t *session, uint8 *msg, size_t msglen, uint8 *cookie, int *clen)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00286">dtls.c:286</a></div></div>
<div class="ttc" id="dtls_8c_html_a35d050593196252c1826ac2e82cbac0b"><div class="ttname"><a href="dtls_8c.html#a35d050593196252c1826ac2e82cbac0b">DTLS_RECORD_HEADER</a></div><div class="ttdeci">#define DTLS_RECORD_HEADER(M)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00095">dtls.c:95</a></div></div>
<div class="ttc" id="dtls_8h_html_a66566dfd30b8ab388c08b4cde6c667cc"><div class="ttname"><a href="dtls_8h.html#a66566dfd30b8ab388c08b4cde6c667cc">DTLS_HT_HELLO_REQUEST</a></div><div class="ttdeci">#define DTLS_HT_HELLO_REQUEST</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00342">dtls.h:342</a></div></div>
<div class="ttc" id="global_8h_html_ada7e71454d685b693df45b2c1ea0c59b"><div class="ttname"><a href="global_8h.html#ada7e71454d685b693df45b2c1ea0c59b">dtls_cipher_t</a></div><div class="ttdeci">dtls_cipher_t</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00074">global.h:74</a></div></div>
<div class="ttc" id="dtls_8h_html_ab04f98f1863c785fabd97925c9746f7d"><div class="ttname"><a href="dtls_8h.html#ab04f98f1863c785fabd97925c9746f7d">DTLS_HT_HELLO_VERIFY_REQUEST</a></div><div class="ttdeci">#define DTLS_HT_HELLO_VERIFY_REQUEST</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00345">dtls.h:345</a></div></div>
<div class="ttc" id="group__prng_html_gac68680277206146d06c9e5468f260ee0"><div class="ttname"><a href="group__prng.html#gac68680277206146d06c9e5468f260ee0">dtls_prng_init</a></div><div class="ttdeci">static void dtls_prng_init(unsigned short seed)</div><div class="ttdef"><b>Definition:</b> <a href="prng_8h_source.html#l00040">prng.h:40</a></div></div>
<div class="ttc" id="alert_8h_html_a41c9f2d4035bc6bf5a0f437842a9ecbdaa392c9a6bb02b01386a1c34dc1947652"><div class="ttname"><a href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbdaa392c9a6bb02b01386a1c34dc1947652">DTLS_ALERT_PROTOCOL_VERSION</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00056">alert.h:56</a></div></div>
<div class="ttc" id="dtls_8c_html_a599f0d6e9134869e55b64c4f8720ebfa"><div class="ttname"><a href="dtls_8c.html#a599f0d6e9134869e55b64c4f8720ebfa">is_ecdsa_client_auth_supported</a></div><div class="ttdeci">static int is_ecdsa_client_auth_supported(dtls_context_t *ctx)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00503">dtls.c:503</a></div></div>
<div class="ttc" id="crypto_8h_html_a59cd7c0b8724e1f9b910611623396080"><div class="ttname"><a href="crypto_8h.html#a59cd7c0b8724e1f9b910611623396080">DTLS_PSK_MAX_KEY_LEN</a></div><div class="ttdeci">#define DTLS_PSK_MAX_KEY_LEN</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00092">crypto.h:92</a></div></div>
<div class="ttc" id="ccm_8h_html_a5c46c97c6c3ef5d4e5bd616dbd064859"><div class="ttname"><a href="ccm_8h.html#a5c46c97c6c3ef5d4e5bd616dbd064859">DTLS_CCM_BLOCKSIZE</a></div><div class="ttdeci">#define DTLS_CCM_BLOCKSIZE</div><div class="ttdef"><b>Definition:</b> <a href="ccm_8h_source.html#l00033">ccm.h:33</a></div></div>
<div class="ttc" id="alert_8h_html_a41c9f2d4035bc6bf5a0f437842a9ecbda2cc56008c097883058c0e2e8ecc6751e"><div class="ttname"><a href="alert_8h.html#a41c9f2d4035bc6bf5a0f437842a9ecbda2cc56008c097883058c0e2e8ecc6751e">DTLS_ALERT_INSUFFICIENT_SECURITY</a></div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00057">alert.h:57</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35a953a6aabd0aff0492df164e79815b122">DTLS_STATE_CONNECTED</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00049">state.h:49</a></div></div>
<div class="ttc" id="dtls_8c_html_a2b598b29d3148bfc02e826d94bbc0642"><div class="ttname"><a href="dtls_8c.html#a2b598b29d3148bfc02e826d94bbc0642">check_server_hello_verify_request</a></div><div class="ttdeci">static int check_server_hello_verify_request(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02530">dtls.c:2530</a></div></div>
<div class="ttc" id="dtls_8h_html_a36eda3add5e2d12a3b5e2b6fe7038e01a53b5588e3c87ce19b1340baf193d130c"><div class="ttname"><a href="dtls_8h.html#a36eda3add5e2d12a3b5e2b6fe7038e01a53b5588e3c87ce19b1340baf193d130c">DTLS_PSK_HINT</a></div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00060">dtls.h:60</a></div></div>
<div class="ttc" id="dtls_8c_html_a88db0e7ffa0836761bef7b62ac3d2fb7"><div class="ttname"><a href="dtls_8c.html#a88db0e7ffa0836761bef7b62ac3d2fb7">check_server_certificate</a></div><div class="ttdeci">static int check_server_certificate(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02552">dtls.c:2552</a></div></div>
<div class="ttc" id="dtls_8c_html_a6b92c487825aa888acc0b55f5adc0220"><div class="ttname"><a href="dtls_8c.html#a6b92c487825aa888acc0b55f5adc0220">dtls_send_certificate_ecdsa</a></div><div class="ttdeci">static int dtls_send_certificate_ecdsa(dtls_context_t *ctx, dtls_peer_t *peer, const dtls_ecdsa_key_t *key)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01834">dtls.c:1834</a></div></div>
<div class="ttc" id="dtls_8c_html_a8bb6e8bb947b943d2af4c1886a8e72ba"><div class="ttname"><a href="dtls_8c.html#a8bb6e8bb947b943d2af4c1886a8e72ba">is_tls_psk_with_aes_128_ccm_8</a></div><div class="ttdeci">static int is_tls_psk_with_aes_128_ccm_8(dtls_cipher_t cipher)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00471">dtls.c:471</a></div></div>
<div class="ttc" id="crypto_8h_html_a1d3c04e5d39477a525b5255ab3240094"><div class="ttname"><a href="crypto_8h.html#a1d3c04e5d39477a525b5255ab3240094">dtls_kb_client_iv</a></div><div class="ttdeci">#define dtls_kb_client_iv(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00168">crypto.h:168</a></div></div>
<div class="ttc" id="dtls_8c_html_ac203466e393ac9030d405c8f0496e9cd"><div class="ttname"><a href="dtls_8c.html#ac203466e393ac9030d405c8f0496e9cd">dtls_init</a></div><div class="ttdeci">void dtls_init()</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00163">dtls.c:163</a></div></div>
<div class="ttc" id="group__prng_html_ga3f4036a1abfcec552ab583a2dc37be6c"><div class="ttname"><a href="group__prng.html#ga3f4036a1abfcec552ab583a2dc37be6c">dtls_prng</a></div><div class="ttdeci">static int dtls_prng(unsigned char *buf, size_t len)</div><div class="ttdef"><b>Definition:</b> <a href="prng_8h_source.html#l00033">prng.h:33</a></div></div>
<div class="ttc" id="group__netq_html_ga9ef9da1a2af266dadef83ddf6c8524d7"><div class="ttname"><a href="group__netq.html#ga9ef9da1a2af266dadef83ddf6c8524d7">netq_node_free</a></div><div class="ttdeci">void netq_node_free(netq_t *node)</div><div class="ttdef"><b>Definition:</b> <a href="netq_8c_source.html#l00127">netq.c:127</a></div></div>
<div class="ttc" id="global_8h_html_acdbfba15eb1a5692e177d582b4ca1583"><div class="ttname"><a href="global_8h.html#acdbfba15eb1a5692e177d582b4ca1583">DTLS_MAX_BUF</a></div><div class="ttdeci">#define DTLS_MAX_BUF</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00064">global.h:64</a></div></div>
<div class="ttc" id="global_8h_html_a8277c276ecd5cd2f998f08fd344d90ef"><div class="ttname"><a href="global_8h.html#a8277c276ecd5cd2f998f08fd344d90ef">equals</a></div><div class="ttdeci">static int equals(unsigned char *a, unsigned char *b, size_t len)</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00127">global.h:127</a></div></div>
<div class="ttc" id="debug_8h_html_a24b1e8ecaa65f684d879ed9d5c37119d"><div class="ttname"><a href="debug_8h.html#a24b1e8ecaa65f684d879ed9d5c37119d">dtls_debug_hexdump</a></div><div class="ttdeci">#define dtls_debug_hexdump(name, buf, length)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00140">debug.h:140</a></div></div>
<div class="ttc" id="crypto_8h_html_a726ef8efa2e072c3c5e1ea1019e716aa"><div class="ttname"><a href="crypto_8h.html#a726ef8efa2e072c3c5e1ea1019e716aa">dtls_kb_key_size</a></div><div class="ttdeci">#define dtls_kb_key_size(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00167">crypto.h:167</a></div></div>
<div class="ttc" id="hmac_8h_html_a96801bbb62f4c9c872b22cd8e438e51e"><div class="ttname"><a href="hmac_8h.html#a96801bbb62f4c9c872b22cd8e438e51e">dtls_hash_finalize</a></div><div class="ttdeci">static size_t dtls_hash_finalize(unsigned char *buf, dtls_hash_t ctx)</div><div class="ttdef"><b>Definition:</b> <a href="hmac_8h_source.html#l00053">hmac.h:53</a></div></div>
<div class="ttc" id="structnetq__t_html_ac72c9378282becab5a273f612f58c124"><div class="ttname"><a href="structnetq__t.html#ac72c9378282becab5a273f612f58c124">netq_t::length</a></div><div class="ttdeci">size_t length</div><div class="ttdef"><b>Definition:</b> <a href="netq_8h_source.html#l00049">netq.h:49</a></div></div>
<div class="ttc" id="dtls_8c_html_af073bf7cefa5e49e0c939e853678d417"><div class="ttname"><a href="dtls_8c.html#af073bf7cefa5e49e0c939e853678d417">verify_ext_cert_type</a></div><div class="ttdeci">static int verify_ext_cert_type(uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00725">dtls.c:725</a></div></div>
<div class="ttc" id="dtls_8c_html_ad9481c39cd66eac3059df28aef1e9843"><div class="ttname"><a href="dtls_8c.html#ad9481c39cd66eac3059df28aef1e9843">DTLS_SKEXEC_LENGTH</a></div><div class="ttdeci">#define DTLS_SKEXEC_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00081">dtls.c:81</a></div></div>
<div class="ttc" id="peer_8h_html_ab6e209f206f570eed246530ec7960943"><div class="ttname"><a href="peer_8h.html#ab6e209f206f570eed246530ec7960943">dtls_security_params_next</a></div><div class="ttdeci">static dtls_security_parameters_t * dtls_security_params_next(dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00084">peer.h:84</a></div></div>
<div class="ttc" id="numeric_8h_html_a7b602967e2fc28b0be02bd4585e255d0"><div class="ttname"><a href="numeric_8h.html#a7b602967e2fc28b0be02bd4585e255d0">dtls_int_to_uint8</a></div><div class="ttdeci">static int dtls_int_to_uint8(unsigned char *field, uint8_t value)</div><div class="ttdef"><b>Definition:</b> <a href="numeric_8h_source.html#l00040">numeric.h:40</a></div></div>
<div class="ttc" id="peer_8c_html_a0297e9d772bfca004a98462d9c7d2828"><div class="ttname"><a href="peer_8c.html#a0297e9d772bfca004a98462d9c7d2828">peer_init</a></div><div class="ttdeci">void peer_init()</div><div class="ttdef"><b>Definition:</b> <a href="peer_8c_source.html#l00031">peer.c:31</a></div></div>
<div class="ttc" id="numeric_8h_html"><div class="ttname"><a href="numeric_8h.html">numeric.h</a></div></div>
<div class="ttc" id="global_8h_html_ab27072920285996a3e16d2e5e3d366be"><div class="ttname"><a href="global_8h.html#ab27072920285996a3e16d2e5e3d366be">uint32</a></div><div class="ttdeci">unsigned char uint32[4]</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00050">global.h:50</a></div></div>
<div class="ttc" id="prng_8h_html"><div class="ttname"><a href="prng_8h.html">prng.h</a></div><div class="ttdoc">Pseudo Random Numbers. </div></div>
<div class="ttc" id="dtls_8c_html_aa89745c0af073102c9c350d28a84214d"><div class="ttname"><a href="dtls_8c.html#aa89745c0af073102c9c350d28a84214d">dtls_send_multi</a></div><div class="ttdeci">static int dtls_send_multi(dtls_context_t *ctx, dtls_peer_t *peer, dtls_security_parameters_t *security, session_t *session, unsigned char type, uint8 *buf_array[], size_t buf_len_array[], size_t buf_array_len)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01407">dtls.c:1407</a></div></div>
<div class="ttc" id="structdtls__security__parameters__t_html"><div class="ttname"><a href="structdtls__security__parameters__t.html">dtls_security_parameters_t</a></div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00099">crypto.h:99</a></div></div>
<div class="ttc" id="dtls_8c_html_aecd3ffe8bf8a3970d3e091ce8e7c6476"><div class="ttname"><a href="dtls_8c.html#aecd3ffe8bf8a3970d3e091ce8e7c6476">dtls_send_client_hello</a></div><div class="ttdeci">static int dtls_send_client_hello(dtls_context_t *ctx, dtls_peer_t *peer, uint8 cookie[], size_t cookie_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02308">dtls.c:2308</a></div></div>
<div class="ttc" id="dtls_8h_html_aa9ebc35a08295c2ae09d4248ba8e6456"><div class="ttname"><a href="dtls_8h.html#aa9ebc35a08295c2ae09d4248ba8e6456">dtls_client_hello_t</a></div><div class="ttdeci">dtls_client_hello_t</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00373">dtls.h:373</a></div></div>
<div class="ttc" id="structdtls__security__parameters__t_html_a2bce1fa0bf77eeab8fadca824de602da"><div class="ttname"><a href="structdtls__security__parameters__t.html#a2bce1fa0bf77eeab8fadca824de602da">dtls_security_parameters_t::epoch</a></div><div class="ttdeci">uint16_t epoch</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00103">crypto.h:103</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35aa58cb54cde33e338814177a41ca2df6b"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35aa58cb54cde33e338814177a41ca2df6b">DTLS_STATE_WAIT_SERVERCERTIFICATE</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00046">state.h:46</a></div></div>
<div class="ttc" id="dtls_8c_html_a81061928e291b6a3e7701f6a7f51b6f3"><div class="ttname"><a href="dtls_8c.html#a81061928e291b6a3e7701f6a7f51b6f3">dtls_destroy_peer</a></div><div class="ttdeci">static void dtls_destroy_peer(dtls_context_t *ctx, dtls_peer_t *peer, int unlink)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01508">dtls.c:1508</a></div></div>
<div class="ttc" id="dtls_8c_html_a51ab17e2a5ac1566ba4249b787bb98a3"><div class="ttname"><a href="dtls_8c.html#a51ab17e2a5ac1566ba4249b787bb98a3">dtls_send_server_certificate_request</a></div><div class="ttdeci">static int dtls_send_server_certificate_request(dtls_context_t *ctx, dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02019">dtls.c:2019</a></div></div>
<div class="ttc" id="dtls_8c_html_a2cf5795397ac5779f281543fc0f44ae9"><div class="ttname"><a href="dtls_8c.html#a2cf5795397ac5779f281543fc0f44ae9">S_KEY_OFFSET</a></div><div class="ttdeci">#define S_KEY_OFFSET(len_s)</div></div>
<div class="ttc" id="dtls_8c_html_a4b3eda5556d76e045b42b93055944ddd"><div class="ttname"><a href="dtls_8c.html#a4b3eda5556d76e045b42b93055944ddd">dtls_debug_keyblock</a></div><div class="ttdeci">static void dtls_debug_keyblock(dtls_security_parameters_t *config)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00533">dtls.c:533</a></div></div>
<div class="ttc" id="peer_8c_html_a209e22be64be13e116711829d21d864c"><div class="ttname"><a href="peer_8c.html#a209e22be64be13e116711829d21d864c">dtls_new_peer</a></div><div class="ttdeci">dtls_peer_t * dtls_new_peer(const session_t *session)</div><div class="ttdef"><b>Definition:</b> <a href="peer_8c_source.html#l00072">peer.c:72</a></div></div>
<div class="ttc" id="structdtls__context__t_html_ab37722ec6b82dd3120827812f212a51e"><div class="ttname"><a href="structdtls__context__t.html#ab37722ec6b82dd3120827812f212a51e">dtls_context_t::app</a></div><div class="ttdeci">void * app</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00237">dtls.h:237</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35abdb6292772d18296f76c90fdc2533ab9"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35abdb6292772d18296f76c90fdc2533ab9">DTLS_STATE_WAIT_CLIENTCERTIFICATE</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00041">state.h:41</a></div></div>
<div class="ttc" id="alert_8h_html_a06e52ce3a2909c8f5a3d47d2c0346124"><div class="ttname"><a href="alert_8h.html#a06e52ce3a2909c8f5a3d47d2c0346124">DTLS_EVENT_RENEGOTIATE</a></div><div class="ttdeci">#define DTLS_EVENT_RENEGOTIATE</div><div class="ttdef"><b>Definition:</b> <a href="alert_8h_source.html#l00068">alert.h:68</a></div></div>
<div class="ttc" id="dtls_8h_html_a55a0a899d7f151e7f53b76fe8a82c10e"><div class="ttname"><a href="dtls_8h.html#a55a0a899d7f151e7f53b76fe8a82c10e">DTLS_HT_CERTIFICATE</a></div><div class="ttdeci">#define DTLS_HT_CERTIFICATE</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00346">dtls.h:346</a></div></div>
<div class="ttc" id="dtls_8h_html_abd61d526ef995e63a6debfd8ddda9e98"><div class="ttname"><a href="dtls_8h.html#abd61d526ef995e63a6debfd8ddda9e98">dtls_hello_verify_t</a></div><div class="ttdeci">dtls_hello_verify_t</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00380">dtls.h:380</a></div></div>
<div class="ttc" id="structdtls__handshake__parameters__t_html"><div class="ttname"><a href="structdtls__handshake__parameters__t.html">dtls_handshake_parameters_t</a></div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00115">crypto.h:115</a></div></div>
<div class="ttc" id="dtls_8c_html_a1e338587fb19c794c8d19bc2801f2eb2"><div class="ttname"><a href="dtls_8c.html#a1e338587fb19c794c8d19bc2801f2eb2">dtls_write</a></div><div class="ttdeci">int dtls_write(struct dtls_context_t *ctx, session_t *dst, uint8 *buf, size_t len)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00236">dtls.c:236</a></div></div>
<div class="ttc" id="global_8h_html_af36d51830256b7d1bf4dbaa8590c19e4"><div class="ttname"><a href="global_8h.html#af36d51830256b7d1bf4dbaa8590c19e4">TLS_CERT_TYPE_RAW_PUBLIC_KEY</a></div><div class="ttdeci">#define TLS_CERT_TYPE_RAW_PUBLIC_KEY</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00092">global.h:92</a></div></div>
<div class="ttc" id="dtls_8c_html_affe47ee08ad0e6a54d4f0c2a7f412675"><div class="ttname"><a href="dtls_8c.html#affe47ee08ad0e6a54d4f0c2a7f412675">DTLS_CH_LENGTH</a></div><div class="ttdeci">#define DTLS_CH_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00075">dtls.c:75</a></div></div>
<div class="ttc" id="dtls_8c_html_a8546683053c19be38b23aa9042139f4b"><div class="ttname"><a href="dtls_8c.html#a8546683053c19be38b23aa9042139f4b">dtls_get_cookie</a></div><div class="ttdeci">static int dtls_get_cookie(uint8 *msg, size_t msglen, uint8 **cookie)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00261">dtls.c:261</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35a1bb7cd2cdb77a9cdc5a5df541e8d99c4"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35a1bb7cd2cdb77a9cdc5a5df541e8d99c4">DTLS_STATE_WAIT_CERTIFICATEVERIFY</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00042">state.h:42</a></div></div>
<div class="ttc" id="dtls_8c_html_ab9733484b9a23775b1bc8b3d723282e5"><div class="ttname"><a href="dtls_8c.html#ab9733484b9a23775b1bc8b3d723282e5">dtls_prepare_record</a></div><div class="ttdeci">static int dtls_prepare_record(dtls_peer_t *peer, dtls_security_parameters_t *security, unsigned char type, uint8 *data_array[], size_t data_len_array[], size_t data_array_len, uint8 *sendbuf, size_t *rlen)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01180">dtls.c:1180</a></div></div>
<div class="ttc" id="dtls_8h_html_a577885c74492a460729a451f33a894c4"><div class="ttname"><a href="dtls_8h.html#a577885c74492a460729a451f33a894c4">DTLS_HT_CLIENT_KEY_EXCHANGE</a></div><div class="ttdeci">#define DTLS_HT_CLIENT_KEY_EXCHANGE</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00351">dtls.h:351</a></div></div>
<div class="ttc" id="dtls_8c_html_ab50d1ee589e91d07032d0a65768dee82"><div class="ttname"><a href="dtls_8c.html#ab50d1ee589e91d07032d0a65768dee82">dtls_check_retransmit</a></div><div class="ttdeci">void dtls_check_retransmit(dtls_context_t *context, clock_time_t *next)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03957">dtls.c:3957</a></div></div>
<div class="ttc" id="dtls_8c_html_a24e7d6ad9fc0d87b7285615123bdd43d"><div class="ttname"><a href="dtls_8c.html#a24e7d6ad9fc0d87b7285615123bdd43d">handle_handshake_msg</a></div><div class="ttdeci">static int handle_handshake_msg(dtls_context_t *ctx, dtls_peer_t *peer, session_t *session, const dtls_peer_type role, const dtls_state_t state, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02992">dtls.c:2992</a></div></div>
<div class="ttc" id="dtls_8h_html_a44ec206b1d84aa3d83281a92ed7cc238"><div class="ttname"><a href="dtls_8h.html#a44ec206b1d84aa3d83281a92ed7cc238">DTLS_COOKIE_SECRET_LENGTH</a></div><div class="ttdeci">#define DTLS_COOKIE_SECRET_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00071">dtls.h:71</a></div></div>
<div class="ttc" id="crypto_8h_html_acdd95c24ec6aebf14dac6ee4386a79be"><div class="ttname"><a href="crypto_8h.html#acdd95c24ec6aebf14dac6ee4386a79be">dtls_kb_server_iv</a></div><div class="ttdeci">#define dtls_kb_server_iv(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00170">crypto.h:170</a></div></div>
<div class="ttc" id="dtls_8c_html_a520419d1976b301c508721faed549b4f"><div class="ttname"><a href="dtls_8c.html#a520419d1976b301c508721faed549b4f">DTLS_HS_LENGTH</a></div><div class="ttdeci">#define DTLS_HS_LENGTH</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00074">dtls.c:74</a></div></div>
<div class="ttc" id="dtls_8c_html_a69edf0296cf64026686d4ff4424d4e8f"><div class="ttname"><a href="dtls_8c.html#a69edf0296cf64026686d4ff4424d4e8f">LOW</a></div><div class="ttdeci">#define LOW(V)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00093">dtls.c:93</a></div></div>
<div class="ttc" id="dtls_8c_html_adb41bf916dc34af5cd79003a9243b727"><div class="ttname"><a href="dtls_8c.html#adb41bf916dc34af5cd79003a9243b727">finalize_hs_hash</a></div><div class="ttdeci">static size_t finalize_hs_hash(dtls_peer_t *peer, uint8 *buf)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l01082">dtls.c:1082</a></div></div>
<div class="ttc" id="dtls_8c_html_ae4a2961a027959f907145f82ca9107c3"><div class="ttname"><a href="dtls_8c.html#ae4a2961a027959f907145f82ca9107c3">dtls_add_peer</a></div><div class="ttdeci">static void dtls_add_peer(dtls_context_t *ctx, dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00227">dtls.c:227</a></div></div>
<div class="ttc" id="crypto_8h_html_a7c9e39188a2e50eb942ce8c7cd8add36"><div class="ttname"><a href="crypto_8h.html#a7c9e39188a2e50eb942ce8c7cd8add36">dtls_kb_local_write_key</a></div><div class="ttdeci">#define dtls_kb_local_write_key(Param, Role)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8h_source.html#l00163">crypto.h:163</a></div></div>
<div class="ttc" id="dtls_8c_html_aa5a8f0d3793bb3b194ca364b596ab01d"><div class="ttname"><a href="dtls_8c.html#aa5a8f0d3793bb3b194ca364b596ab01d">HIGH</a></div><div class="ttdeci">#define HIGH(V)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00092">dtls.c:92</a></div></div>
<div class="ttc" id="dtls_8c_html_a00707f0f82235a2432338e77dae0911d"><div class="ttname"><a href="dtls_8c.html#a00707f0f82235a2432338e77dae0911d">dtls_handshake_type_to_name</a></div><div class="ttdeci">static char * dtls_handshake_type_to_name(int type)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00565">dtls.c:565</a></div></div>
<div class="ttc" id="debug_8h_html_a5cae2fb7fec0dd9e63cf2d755642cd9da87f82ea2bdc3f03d9f6d3355a5f8a020"><div class="ttname"><a href="debug_8h.html#a5cae2fb7fec0dd9e63cf2d755642cd9da87f82ea2bdc3f03d9f6d3355a5f8a020">DTLS_LOG_DEBUG</a></div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00067">debug.h:67</a></div></div>
<div class="ttc" id="global_8h_html_a5e90b30856b81913af89565b55751da5"><div class="ttname"><a href="global_8h.html#a5e90b30856b81913af89565b55751da5">uint16</a></div><div class="ttdeci">unsigned char uint16[2]</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00048">global.h:48</a></div></div>
<div class="ttc" id="crypto_8c_html_a5e47576e502b5a6255f1b489a4915512"><div class="ttname"><a href="crypto_8c.html#a5e47576e502b5a6255f1b489a4915512">dtls_prf</a></div><div class="ttdeci">size_t dtls_prf(const unsigned char *key, size_t keylen, const unsigned char *label, size_t labellen, const unsigned char *random1, size_t random1len, const unsigned char *random2, size_t random2len, unsigned char *buf, size_t buflen)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00249">crypto.c:249</a></div></div>
<div class="ttc" id="group__netq_html_ga142c8e39fe2cd55250e3c1f0370dfe6b"><div class="ttname"><a href="group__netq.html#ga142c8e39fe2cd55250e3c1f0370dfe6b">netq_insert_node</a></div><div class="ttdeci">int netq_insert_node(list_t queue, netq_t *node)</div><div class="ttdef"><b>Definition:</b> <a href="netq_8c_source.html#l00061">netq.c:61</a></div></div>
<div class="ttc" id="dtls_8h_html_a3114c327a12e3850e97c4cf8a0cc5c9d"><div class="ttname"><a href="dtls_8h.html#a3114c327a12e3850e97c4cf8a0cc5c9d">DTLS_CT_CHANGE_CIPHER_SPEC</a></div><div class="ttdeci">#define DTLS_CT_CHANGE_CIPHER_SPEC</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8h_source.html#l00325">dtls.h:325</a></div></div>
<div class="ttc" id="numeric_8h_html_a238931e9197ce422acfba569deb2af71"><div class="ttname"><a href="numeric_8h.html#a238931e9197ce422acfba569deb2af71">dtls_uint24_to_int</a></div><div class="ttdeci">static uint32_t dtls_uint24_to_int(const unsigned char *field)</div><div class="ttdef"><b>Definition:</b> <a href="numeric_8h_source.html#l00105">numeric.h:105</a></div></div>
<div class="ttc" id="group__clock_html_ga1834985745ba5d3dd03f7e7498e3a304"><div class="ttname"><a href="group__clock.html#ga1834985745ba5d3dd03f7e7498e3a304">dtls_ticks</a></div><div class="ttdeci">void dtls_ticks(dtls_tick_t *t)</div><div class="ttdef"><b>Definition:</b> <a href="dtls__time_8c_source.html#l00067">dtls_time.c:67</a></div></div>
<div class="ttc" id="dtls_8c_html_aa2f1fb16f297640b319ff0d864139ea5"><div class="ttname"><a href="dtls_8c.html#aa2f1fb16f297640b319ff0d864139ea5">free_context</a></div><div class="ttdeci">static void free_context(dtls_context_t *context)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00157">dtls.c:157</a></div></div>
<div class="ttc" id="dtls_8c_html_ae35671d94ccea5f335546ce409aed601"><div class="ttname"><a href="dtls_8c.html#ae35671d94ccea5f335546ce409aed601">compression_methods</a></div><div class="ttdeci">static uint8 compression_methods[]</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l00456">dtls.c:456</a></div></div>
<div class="ttc" id="dtls_8c_html_a9cfb3c9e63f378d0d8e3d3d0c60537a5"><div class="ttname"><a href="dtls_8c.html#a9cfb3c9e63f378d0d8e3d3d0c60537a5">dtls_send_ccs</a></div><div class="ttdeci">static int dtls_send_ccs(dtls_context_t *ctx, dtls_peer_t *peer)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02156">dtls.c:2156</a></div></div>
<div class="ttc" id="dtls_8c_html_a4d7a16c9d0cd28666a2cc8ec471aa664"><div class="ttname"><a href="dtls_8c.html#a4d7a16c9d0cd28666a2cc8ec471aa664">handle_ccs</a></div><div class="ttdeci">static int handle_ccs(dtls_context_t *ctx, dtls_peer_t *peer, uint8 *record_header, uint8 *data, size_t data_length)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03457">dtls.c:3457</a></div></div>
<div class="ttc" id="dtls_8c_html_a4c7a26bc520ac2ac88b4758e0fb84f1e"><div class="ttname"><a href="dtls_8c.html#a4c7a26bc520ac2ac88b4758e0fb84f1e">dtls_alert_send_from_err</a></div><div class="ttdeci">static int dtls_alert_send_from_err(dtls_context_t *ctx, dtls_peer_t *peer, session_t *session, int err)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l03559">dtls.c:3559</a></div></div>
<div class="ttc" id="crypto_8c_html_aac32554190e3970917a31ff01eed4080"><div class="ttname"><a href="crypto_8c.html#aac32554190e3970917a31ff01eed4080">dtls_decrypt</a></div><div class="ttdeci">int dtls_decrypt(const unsigned char *src, size_t length, unsigned char *buf, unsigned char *nounce, unsigned char *key, size_t keylen, const unsigned char *aad, size_t la)</div><div class="ttdef"><b>Definition:</b> <a href="crypto_8c_source.html#l00550">crypto.c:550</a></div></div>
<div class="ttc" id="debug_8h_html_a94fa8dba0861075ba507ea0417fd83c8"><div class="ttname"><a href="debug_8h.html#a94fa8dba0861075ba507ea0417fd83c8">dtls_emerg</a></div><div class="ttdeci">#define dtls_emerg(...)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00133">debug.h:133</a></div></div>
<div class="ttc" id="structdtls__peer__t_html_aeca80f1bcbcfdba89a2ab08e4bc48120"><div class="ttname"><a href="structdtls__peer__t.html#aeca80f1bcbcfdba89a2ab08e4bc48120">dtls_peer_t::role</a></div><div class="ttdeci">dtls_peer_type role</div><div class="ttdef"><b>Definition:</b> <a href="peer_8h_source.html#l00061">peer.h:61</a></div></div>
<div class="ttc" id="structdtls__hs__state__t_html_a694ce15382e7504a750a1b102ad8ec32"><div class="ttname"><a href="structdtls__hs__state__t.html#a694ce15382e7504a750a1b102ad8ec32">dtls_hs_state_t::mseq_s</a></div><div class="ttdeci">uint16_t mseq_s</div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00055">state.h:55</a></div></div>
<div class="ttc" id="dtls_8c_html_adc4e7aa5066240a362341bbdb998bc71"><div class="ttname"><a href="dtls_8c.html#adc4e7aa5066240a362341bbdb998bc71">decrypt_verify</a></div><div class="ttdeci">static int decrypt_verify(dtls_peer_t *peer, uint8 *packet, size_t length, uint8 **cleartext)</div><div class="ttdef"><b>Definition:</b> <a href="dtls_8c_source.html#l02877">dtls.c:2877</a></div></div>
<div class="ttc" id="uthash_8h_html"><div class="ttname"><a href="uthash_8h.html">uthash.h</a></div></div>
<div class="ttc" id="global_8h_html_a0074adc0b2543a913a597e510caf27b0"><div class="ttname"><a href="global_8h.html#a0074adc0b2543a913a597e510caf27b0">TLS_EXT_CLIENT_CERTIFICATE_TYPE</a></div><div class="ttdeci">#define TLS_EXT_CLIENT_CERTIFICATE_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="global_8h_source.html#l00088">global.h:88</a></div></div>
<div class="ttc" id="state_8h_html_aea0e57fd5b857535960534b53361aa35a1a76f1e49c80d22df9673f8471d1ec53"><div class="ttname"><a href="state_8h.html#aea0e57fd5b857535960534b53361aa35a1a76f1e49c80d22df9673f8471d1ec53">DTLS_STATE_CLIENTHELLO</a></div><div class="ttdef"><b>Definition:</b> <a href="state_8h_source.html#l00046">state.h:46</a></div></div>
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